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Cactus_Head @programming.dev

2w ago

What some weird stuff your body does?(can be NSFW)

My sister got a Bluetooth headset and it reminded me that i cant use those because my ears heat up in less than 10 seconds after putting them on, in fact as i am typing this my ears are kinda of uncomfortably hot. Dust also cause my ears to heat, it usually the cause but it can also happen randomly as well as when i leave the PC monitor running when i sleep(same room).

there is some other stuff i thought to mention but i think it would be better for a post after discovering your body(e.g my cousin though all ppl can only see through one eye until recently because he himself can only see through one eye and that's how he found out he has only one functioning eye)

Also feel free to talk about NSFW stuff and is this post hard to read(sentence structure wise)? Cause i never know if ppl have hard time reading my post, and at the moment i find it hard to read myself

248 comments

Synesthesia. I can see sound. Really neat, actually.
Not so neat is my aparent genetic resistance to pain meds and anesthetics. Caused some "fun" in a hospital stay
- (Irish ancestry here: Letting them know that you've got redheaded relatives is the secret cheatcode to let you stay unconscious during surgery. There's a whole protocol about it.)
  
  yup. My dad is irish. And although I'm not a redhead, I later learned that I have the gene and it's one of the factors in this problem.
  Too bad I only learned about this fact after I woke up a couple times during surgery and later when they put me into an induced coma and I pulled out my tubes.
  
  Wow, I did not know that. Thanks a bunch.
  
  OMG. I had a terrible dental experience because of this.
- Does red hair run in your family by any chance? People with red hair in their family (myself included, I have auburn-ish hair) need 20% more anesthetics.
  
  yup. See my other reply
- Same. I inform doctors that I am resistant to sedation. They nod, not believing me. I go under. I wake up 4 hours early, everyone goes insane. One time they failed to put me out right away. Fortunately they managed to put me out before they cut into me. My last memories before waking are hearing "oh shit, he's awake". Another time they used "an adult dose and a child dose" which... doesn't sound right. But I remember waking with a half dozen people trying to rouse me.
  
  when the surgery team came visiting me afterwards, the anesthesiologist said they used "the elephant's dose"
- How does “fuck you” look like ?
  
  funnily enough, as soon as my brain can parse it as language, my synesthesia doesn't trigger anymore. It really is just for sounds and music.
  If I listen to a language that I can't understand, my synesthesia triggers. It's a fun example of how the brain processes the information
  
  I need this info too
- Aphantasia here. Can’t see or remember shit. It sucks.
  Only benefits are speed reading and a boost to abstract/scientific thinking. But episodic memories and visualisation sound more fun.
  Also resistant to everything. Connective tissue disorder? (EDS)?
  
  Aphantasia here too, do you have an inner monologue? I don't, to the dismay of every therapist and partner I've ever had.
  "What are you thinking?"
  "There are not words for this."
  
  I can relate. Here's something you can see though.
- Not so neat is my aparent genetic resistance to pain meds and anesthetics. Caused some "fun" in a hospital stay
  Are you a redhead? Apparently that's a fairly common trait for them
  
  Not quite. See my other replies
- Same here on the resistance to pain meds. I had a such a terrible experience with surgery. Once I woke up I was in such agony but I was also tripping hard from the dilaudid and left over anesthesia that I was unable to communicate effectively. Once a doctor finally listened to me many hours later, they gave me a cocktail of other stuff that finally eased the pain. I also really struggle with dental work.
- What's the coolest-looking sound?

I'm a tetrachromat if that counts. That means instead of seeing just the regular six color groups most people see, I can see 25% more colors on top of that.
- You must be a woman. As far as I can tell, that only happens in women.
  
  This is correct. In fact, the same gene manifests differently in men even if they had it. In men, if anything, it hinders color. Or so that's what my doctor told me.
- Here's me with my red-green deficiency already jealous of standard colour vision
  
  Honestly, practically-speaking, you aren't missing out on too much. Color isn't as crucial a detail outside of aesthetics. Plus I imagine you have the perfect excuse for running a red light and committing fashion crimes.
- Nice! You should read the Lightbringer series by Brent Weeks if you like Fantasy novels.
  https://www.goodreads.com/series/291662-lightbringer
  
  Yes, every superchromat should read this series.
- I am weirdly envious. That sounds so cool!
- I'm apparently one of the only men in the world who have something akin to that, it's similar but not as strong from what I've been told. Never once met another man with a better colour sense than me.
- could you elaborate on what you mean by "more colours"? like infra red or ultraviolet? or do you mean your eyes have an extra colour cone that gives you more precise information about colours so that it's easier for you to tell them apart?
  
  A human's eyes see color because of cones in the eyes. Each one corresponds to a different range of wavelengths; one cone corresponds to red, one to yellow or green, and one to blue. Tetrachromats have four cones.
  Look outside at the nearest flower. To you, it could be just yellow, but we might see some cyan or teal that other people don't. This is how crows, which we typically assume are all identically black, often recognize each other so well; they have five or six color cones I think, and amongst themselves, they look like they have the colors of a parakeet.
  We can see new colors too. They are difficult to describe, though the best way to describe them is to ask you to think of the most neon-esque colors you can think of and think of all the dimensions and hues you might have never seen and which take on a life of their own. These new colors stretch beyond the ordinary boundaries of the rainbow but loop around in the same way.
- What does the color addon look like?
  
  What do you mean, like the add-ons for technology? Technology, as it turns out, is biased towards trichromacy. When using a device or watching footage, you just get the red/green/yellow/blue experience because that's all that's programmed in the pixels. It's to me what watching a noire movie is to a person who sees the normal range of colors.

I have photic sneeze reflex aka sudden exposure to bright light tends to make me sneeze. Usually happens if I've been indoors for a while and then walk out into a bright sunny day.
For a long time never really thought about it, just figured it was a normal thing. Wasn't until adulthood that I started noticing most people don't do that and looked it up. If Wikipedia is correct 18% - 35% of the world's population has that condition.
https://en.wikipedia.org/wiki/Photic_sneeze_reflex
- You can't just post this and leave out the other name for this:
  Autosomal-dominant Compelling Helio-Ophthalmic Outburst
  Or: ACHOO
  
  Everyone realizes this is a joke acronym, right? Or am I dumb for thinking that needs to be pointed out?
- I have something similar. Honeymoon rhinitus. People have picked up the perception that, if I sound like I have a cold when I talk to them, I really like them.
- I've definitely got some variant of the photic sneeze. If I'm in a small sneezing fit, and I want to continue to dislodge the whatever, I look for the brightest area and wait. Takes less than 5 seconds.
  
  If I feel a sneeze lingering all I have to do is look at the sky or a light and I can get it out right away. It's like a cheat code for getting it over quickly. It can be annoying when driving sometimes when the sun is suddenly in my face and I immediately sneeze.
- I have that too and also thought it normal for the longest time. My wife calls it that I ”get sun in my nose”.
- I’m in the crazy sneezing corner at work.
  My coworker has allergies, with fits of many sneezes.
  At the same time every day when the sun comes in, I get hit with three rapid sneezes - loud too. It’s always a surprise so I don’t have time to figure out how to sneeze quietly. You could set a clock by it

I noticed that for some reason, when I pee I feel the tip of my toes getting hotter
I have no idea what causes it
- Stop peeing on your toes
  
  thanks! so that's what causes it
- Same, but more intense. It can affect the whole of the bottom of my feet sometimes, and I've never been able to consistently replicate it so I've no idea what triggers it either.

When laying in dark, any smallest sound makes a bright flash appear in my eyes, before I realize there was a sound. So I am always surprised when it happens, and fraction of a second later I realize there was a sound. So it's Synesthesia, but from Wish.
- Ha! This happens to me as well! I do have a funny slight extra detail though. I can't really visualise images in my minds eye (almost aphantasia), but when I'm closing my eyes to go to sleep, and a sudden noise happens, I see a flash of white like you, but also usually some random af detailed image flash in my minds eye. It's so weird, always different, always amusing, and the closest I get to visualising. It could be anything, like a old woman in a cowboy hat riding a horse or whatever. Also, I have slight grapheme-colour synesthesia, so it's interesting that you called it wish synesthesia! I wonder if it plays some role!
- Absolutely all sounds, but it has to be unexpected!

I can pop my clavical by pushing my shoulder toward my back with my opposite hand.
I can inhale through my ass to fart on command.
My thumbs can bend backwards without assistance from the other hand.
I can inhale smoke from a cigarette or pipe or something, and blow it out of my ears (it hurts though; I don't like doing it).
I can kinda wiggle my ears.
I can put my own dick in my own butt, but just the tip.
I can tell when there are electronics turned on around me even if they aren't intended to make noise, because they all seem to give off this kind of almost imperceptible high pitch whine. Not enough to be bothersome, but just enough to know something probably has current running through it.
- I can tell when there are electronics turned on around me even if they aren't intended to make noise, because they all seem to give off this kind of almost imperceptible high pitch whine. Not enough to be bothersome, but just enough to know something probably has current running through it.
  Same here. But that's basically just good hearing.
  
  I could do that with CRT TVs. Back when we had one, I could always tell when someone was watching TV. No matter where I was in the house.
- Yeah, the electronic device sound is coil whine, mostly produced by power transformers, but a few other things too. Some do it loudly enough or low pitch enough for everyone to hear, others are quiet enough or high pitch enough that only people like us can hear them.
- I kinda want a video
- I can tell when there are electronics turned on around me even if they aren't intended to make noise, because they all seem to give off this kind of almost imperceptible high pitch whine.
  I can also hear the noise that some batteries make when they get charged.
- My sisters can do 1 and 3, and like i said in my other comment, it makes my skin crawl
  
  This person and your sister should look into EDS, its one of the main symptoms.

I can fold my ears in on themselves and they will stay that way until I smile.
Basically my ears are just super soft because I was always playing with them as a kid so the cartridge never really hardened up like it did for most other people.
As I have gotten older and played with my ears less they don't stay folded as long but I can still do it.

I can smell moulds that nobody else can smell; at least for several more weeks until the moulds get mouldy enough.
It's basically the most pointless superpower. I can smell the cereal in the cupboard and tell my wife that it's gone bad, but she won't smell it so she'll eat it and then nothing bad happens except possibly to her gut microflora
- I recently learned about some people being able to smell ants. I wonder if you can smell them as well
  
  Sadly no, I'm not one of those cool Ant People
- My nose is specially sensitive to stuff like deodorants and synthetic perfumes, formaldehyde and other paint smells, the stuff from Odonil™, WD 40 etc. I feel like, if I wanted to train myself to detect non-lethal doses of HCN, I might manage it.
  
  If you smell almonds, you are in business.
- I have something similar (but days, not weeks) and was always the designated tester in my family but half the time they eat the food anyway.
- Odd, same here. Can’t smell other stuff that well but mold I pick up on right away.

Imagine in your head a scene on the ocean near a dock with a sailboat. The wind is light and there are small waves lapping against the shore, rocking the boat.
Well, I mostly can’t do that. Not much of a minds eye. If I really focus I can do it but there isn’t any detail, and my mind doesn’t fill in background.
- I can relate to that.
  My doctor once told me it makes us immune to horror movies.
  
  Is this why I can't stand horror movies, and find them really boring? Very interesting!
- Aphantasia. I have it, too.
- Lol I skipped past the first paragraph after reading the first few words, as it's just a bunch of words to me, and then realised reading the next paragraph that exactly that was your point. Yes I definitely relate to you 😂
- Have the same problem with aphantasia but full on, I can't imagine feeling, hearing or any of my senses In my head. I know something is hot because I remember it hurt but I can't seem to like create it in my mind.
  Although tbh it's kinda fun to interupt someone when they say "ok imagine that..." And I'm like "no". (Usually in jest with someone I trust)

I can pop, or reverse pop my ears at will. Where most people talk about chewing gum to pop their ears on a plane I can push out and suck them in to change the pressure at will. It's useful to help regulate how much noise gets in (in a small way) too.
- Same, there is a muscle in there that most people can't voluntarily control.
  But we can!
  Also, I've never heard anyone else mention the part about "reversing" their ears! Seems I'm not the only one!
- Hey me too
- Same. It’s a very useful trick for scuba diving.
- I can pop outwards by closing my mouth and nose and then putting pressure on my mouth walls with the air.
  Reverse, I can manage only down to equal pressure, by simply drinking back my saliva.
- What do you mean by pop ? Ro you hear a champagne bottlw “pop !” instead of the regular crackling noise ?
  
  it's like when go from a high down, your ears pop
- I can do this too!

Not myself, but my wife. We live in the country side with two cats, and they have a cat flap, 24/7 access. My wife can smell a dead mouse nearly from the second it's dead. She complained last week about it smelling like death in our hallway, and we couldn't find the source. It took two days for me to smell it, and then it was gone a few days later. We think it died in the ceiling, so couldn't do much about it. But her smell for death is crazy!

I have weirdly thick skin on and especially under my feet, so I can walk barefoot on ice and snow and not feel cold.
- Damn I'm jealous, true northerner

If I hold my pee for too long, I struggle to start peeing. It'll weakly dribble but some will come out, then about 5 minutes later I can piss normally. It's bullshit.
- Guessing you're a male? Similar issue here too. Gets worse as you get older I've found.
  
  Came on pretty suddenly when I had my appendix out around 20. They put a catheter in for the surgery and there was a little mishap that required some repair. Everything works fine unless there's too much backpressure. Hasn't changed much in the past 18 years.

I have a rare condition called EBS (sometimes called butterfly skin). I am lucky enough to have a non life threatening form so it is usually only a problem when I walk/exercise in above 20°C temperatures. And I usually get benefits (I rarely have to queue for things)
- How does it help with queueing? Like people will universally allow you to go upfront?
  
  Probably can skip queues, as a way to accommodate those with medical conditions.
  
  Most businesses give me a pass to let me skip queueing if I give them enough notice

I have a forked tongue
I once hammered the back of my sinuses hard enough to draw blood
I can make my shoulder blade pop out
I can keep my eyes open for 5-10 minutes
- Hammered the back of your sinuses? Come again
  
  https://en.wikipedia.org/wiki/Human_blockhead
  I do this a lot with nails, icepicks, and power drills
- the fourth one, both my sisters can do that? makes me squeamish

I can hear the muscles in my eyes when I look from side to side.
- This happened to me when I took antidepressants for the first time, as well as being incredibly sensitive to sound, to the point where I could hear electricity.
  Not being hyperbolic at all. To test this my partner and I tested a bunch of devices, she flicked either a dummy-switch, or one powering an appliance, and with my back turned, I could tell her if it was on, off, or she hit a dummy switch.
  Ultimately I couldn't stand being on antidepressants, I felt like my IQ dropped 10 points.
  
  I always thought hearing electricity is normal, up until I realized most people can't do that. Never been on antidepressants or anything, that's my normal state of consciousness.
  Surprise surprise, I'm extremely sensitive to all kinds of noise.
  
  Some appliances are louder than others. Curious to hear what appliances you can hear
  I'm able to hear the AC hum from motors and any inductive heating elements.
  When it's completely silent in the room, I can hear the transformer in my phone charger make a variable squealing sound
  
  Being dumb does seem to be the key to happiness

I can pop my ankles almost non stop since around 2 years ago for some reason (no pain or anything), lol
- I can do this as well. Every single girlfriend I have had in my life absolutely hated it. I don't even notice myself doing it sometimes.
  
  It's kinda "addictive", so hard to resist the urge. Hopefully it has no negative health effects (there was that study about one who popped their knukles and found out it wasnt damaging, hopefully they are correct)
- I can do that too. Bonus since I sprained one at 16, I'll just be randomly walking along when something in my ankle makes an audible pop and dislocates for just long enough for me to stumble and take another step.
  I had a wrist sprain a few years back and got an X-ray. They told me my ulna was about a millimeter longer than it probably should be. I'm wondering if that's the case for most of my joints and that's why I creak like gammy's favorite rocking chair
  
  Ugh ouch
  I dont know if I sprained mine, I remember picking up running for a few weeks (cuz I thought doing only weights wasnt the best idea) and I remember my ankles feeling sore after running. I expected it to be normal though, cuz I don't tend to run a lot (though I walk a lot). 🤷
  Haven't done an xray yet, might do one day
- I can do it, but only with my left ankle! It's almost like I'm sliding the tendon across the bone? making a really loud "popping" sound, over and over. I've been able to do it for as long as I can remember and it's never hurt. Never met anyone else who could do it!

I can think myself into immediately stopping hiccups.
I can also puke on demand.
- You could make a killing in the Japanese porn industry
  
  I....I could? Humans are weird and wonderful creatures.
- I can burp on command tho i think that ones command

When I'm in a hypnagogic state (between awake and sleeping) I can look through my eyelids.
They're still closed, but I can see the room through them.
I know it's not real, and if something were to quietly change in the room, I wouldn't be able to see it, but it still feels weird.
I can also pinpoint the moment when I'll fall asleep, and sometimes go directly from being awake to dreaming.
Which has the nice side effect that I'm aware I'm dreaming, and the dream world feels just as realistic as if I was awake, except I can control everything in it.

Some microphones can't pick up my voice.
- We need more information here because that doesn't seem possible. Is it something like your voice is so deep that cheap microphones don't capture it or what?
- I assume you dont mean poor quality ones. is your voice really deep or really high pitched to you or other ppl around you
  
  They've already responded to both of you, you just can't see it. Now you see the problem.

My ears have a little muscle in them that acts like an eject button for hard earbuds ( like apple)

When I have to shit really bad I can feel a pain in my forearm. Not like a painful pain but more like a tingling sensation in only my left forearm.
- How strange! When I have to pee really badly, I feel it in my teeth. Is that weird or normal?! My past partners have never had this uncomfortable tingling sensation from it. I always clench my jaw and wiggle to try and ease the feeling. Obviously also go pee.

I can wiggle my little toes independently.

I can clap each of my hands individually. What's the sound of one hand clapping? Lemme show you twice at once! Also, it's not elegant, but me flailing about in a controlled manner.
I can wiggle my ears.
I can pop pretty much every joint. Some hurt more than others. The crapshoot ones are my hip joints. Usually hurts then massive relief.
If I yawn the wrong way (usually when turning my head), my hyoid bone shifts and gets stuck. I have to move it back in place by hand, carefully. That was a scary discovery.
I have had permanent tinnitus since about April of 2023. (Kill me)
If I'm congested and I blow my nose, snot can come out of my right eye's tear duct.
I have dysgraphia. I fucking hate writing by hand. It's painful, it shoots up my arm, and my handwriting is always terrible. I regularly make mistakes. I stopped using cursive entirely about 20 years ago, and now only use capital print letters (with a larger first letter for each word). Example: https://ibb.co/YPPDKFq
- If I yawn the wrong way (usually when turning my head), my hyoid bone shifts and gets stuck. I have to move it back in place by hand, carefully. That was a scary discovery.
  Oh shit that happens to me too and I've never known what it was, thank you
- I can clap each of my hands individually.
  In other words, snap using 3 or 4 fingers at a time, without relying on the thumb to coil the muscles. That seems doable with a bit of prctc. Let me know if you meant something else.
  If I yawn the wrong way (usually when turning my head), my hyoid bone shifts and gets stuck. I have to move it back in place by hand, carefully.
  I just tried the same thing. Felt a pull on one of my joints the wrong way. Not going to try turning my head any further and will be careful not to turn my head while yawning from now. Yes, that was scary.
  I have dysgraphia.
  Due to how I learnt to write when I started using a pen, any long term writing causes my thumb movement muscles to cramp up, making me have to stop writing.
  I also seem to have something related to dysgraphia, but it's much milder than as depicted in the image in the Wikipedia article. So, the glyph metrics don't match. I still use cursive though, just because I'm used to it. It's also much milder than your example, though I do tend to have times when characters get switched or entangled.
  
  I can close my 4 fingers fast enough to make a muted, but definitely audible, clap sound.
  If I lock my wrist back about 90°, I can flail my fingers about, whereby they synchronously slap my palm, making a clap sound.
  I can do these actions with each hand individually.

I have super crooked pinkies, can perpetually pop my ankle, and can retract my testicles back in my body?? Idk if other people can do that last one but all my buds in hs promised they couldn't
- I can also slide my balls up inside, sometimes it happens by itself too. Can feel them under my pubes
  
  That also happened to me a lot when I was little, usually in cold water.

I absolutely loathe shoes and boots because it causes my feet to overheat and then my whole body feels uncomfortable. I am a dedicated sandal wearing unless there's literally snow outside.
One of my teeth is sort of in the middle of my mouth - I had an issue with it not coming in straight so an ortho pulled it down through the roof of my mouth and it was never really worth it to pull it into place. It's fun to fidget with with my tongue.
- I had two of those as a kid. They put little chains around them and pulled them down into place.
  
  That was the plan with mine but I was a terrible patient.
- For the teeth i have something similar. My last baby tooth was just removed last year even tho i am +18, turns out my adult tooth was growing below it all this time and now its behind my row of teeths and i can't stop rubbing it with my tongue and its damn sharp that its driving me insane
  I am gonna remove it too but unfortunately we dont have the money for that now
- You share the tooth thing with Tom Cruise! Random thing I learned the other week.

I can feel when lights are turned on or shine at me. Taking photos with a flash for example feels like a hot wave to me. I think that is a side effect of my ASD, the poor stimulus filtering to be exact
Also I can hear most electric devices because of that. Charging them for example has a loud high frequency noise. Not just cheap chargers, almost all electronic devices
- How old are you? For younger people they can hear charging devices but that fades with time. You might not always have this as I lost it a few years ago.
  
  I‘m already 35, I think that’s past the age where my youth gives me superpowers
- That reminds me that sometimes I can feel people behind me from their body heat, even while outside. My main assumption is that I'm feeling the infrared that's emitted
- Well, light degrades into heat. I feel it too, for the high powered ones. I have my bicycle headlights and can feel the heat wherever they hit me.
  Oh you can hear the expensive ones too? Nice. Not sure about your case, but for me, it is low enough to be useful but not distracting. You can let a bit more of your ear wax build up, which should help reduce it a bit.

i can bend my fingers the other way quite far, it always freaks people out a little when i do that
my feet get hot very easily, to the point where in the summer the only "shoes" i can wear is flip flops or sandals, anything more and i feel like they're on fire in minutes
- Wanna trade with me for a while? I have feet that are chronically cold and sweat like they are hot. I bought battery powered socks.

Sometimes if I take too big a gulp of water at once, the little bone near my adam's apple clicks out of place and I have to manually reset it.
- Hey! Me too. I thought I was the only one. Happens when I yawn sometimes too.

Can crack/pop most joints.
Can wiggle both ears individually or together.
I can cause my vision to go blurry on purpose - no idea if other people can?
I can hear some electronic devices that are plugged in, can also hear when certain portable devices have finished charging, so basically I have pretty good hearing.
I can pop my arms out of my shoulder joints, without using my hands, and back in again. Completely painless, but can sometimes do it by accident if I'm leaning against a doorframe etc, or pushing/pulling against something, so I have to be careful.
I can turn my face red by tensing my jaw.
I can turn my eyelids inside out.
I can forcibly go cross-eyed.
The back top of my skull is completely flat. If I shaved my hair off it would look like a chunk is missing haha. This also means there are dents in the middle top either side of my skull as well, almost like it has creased inwards. Was layed on my back too much as a child.
I have a seemingly hidden source of strength, I am very slim and not particularly muscular, but am stronger than some friends who are bigger and more muscular than me. I also find it difficult to add any visible muscle mass. Maybe I have dense muscle?
- I think the eye stuff are normal just take a bit of practice. If you have good control of your focus you can see "3D". Try merging the two circles here. Once you get it there's a bunch of interesting things you can do
  
  Thanks, very cool.
- I can cross my eyes no problem but can't make them look in opposite directions outward.
  And not particularly strong, but "stronger than I look" according to every guy I have playfully wrestled. I don't know if I am strong or other women hold back, though. I never do because I understand guys who look my size have an advantage of like 100% more strength, even if I want to lose I try to win!
  
  I can go cross-eyed in both directions, though I have eye problems related to that anyway, so I don't have to try particularly hard as a result.
  I definitely wouldn't say I am "strong", just stronger than what most people expect. I have had some people who were surprised when I beat bigger people in arm wrestles etc. Don't hold back, try to win every time ;D.
- Yes, I can focus and unfocus my eyes at will, I too, to razor sharp vision or so blurry that I can't even make out features on anyone's face. (Without going cross eyed, which I can also do with any eye at a time).
  It's a good superpower, as I have glasses that I can wear if I want to which are roughly +3.5, but I rarely bother, because I'll just use my eye muscles to see perfectly well,so I never freak out when I lose my glasses or whatever. I
  It's really handy for zoning tf out, too. Which is mostly a blessing, but sometimes a curse, especially as I have the inattentive ADHD where I just go blank faced and stare into the blurry distance whilst totally disappearing inwards.
- I can pop my arms out of my shoulder joints, without using my hands, and back in again. Completely painless, but can sometimes do it by accident if I'm leaning against a doorframe etc, or pushing/pulling against something, so I have to be careful.
  Have you been diagnosed with any hypermobility disorders? You might want to look into some and check with a doctor, because some of them have pretty nasty side effects since they lead to most connective tissue degenerating, even inside your heart
  
  Nah I've not been diagnosed with anything. Be reyt.

I can scoop a spit bubble up off the bottom of my mouth with my tongue, fold my tongue around it, and blow the bubble out of my mouth, and it floats to the ground.

I sometimes feel the same thing at different spots of my body.
Like if someone pinches the skin on my back I could feel the pain of the pinch on my shoulder as well.
- Me too! If I'm scratching or picking at my skin, sometimes I feel it somewhere else, so I figured it's normal and just nerve signals being connected somehow, but never spoken about it.

I can make the Vulcan "live long and prosper" sign, but only with my left hand.

I have hypermobility, but a mild form that just lets me bend my fingers back without any of the major problems associated with it.
My hands and feet are slightly adhesive when they're any wetter than bone dry, so you can hear a faint peeling sound when I walk barefoot in the house, even a little bit on short carpet. Think peeling scotch tape and reduce it by 50%.
I can also control the muscles responsible for equalizing the pressure in my ears, and that allows me to put them under a slight vacuum to slightly dampen loud noises.
I also have long toes. Not to the extent of a chimp, but I have successfully signed my name with them before (though even lower quality than signing with my left hand).
I also cannot cry from cutting onions. This sounds awesome until you're cutting 3 bags of onions in one go and you learn that the tears dilute the sulfuric acid that forms. That was a painful evening.

I can dislocate my joints at will. Thing with Ehlers-Danlos but it's a nice party trick

I don't get fevers. My immune system is above average, I don't have any diseases which affect my immune system, and nobody's sure why I don't get fevers.
I have hyperphantasia, so when I imagine things, they look as real as real life, or like I'm watching a movie scene.
I also have hyperthymia, which means I'm in a near continual state of mild mania (and I enjoy it!)
- How is not getting fevers the sign of a strong immune system? Fevers are how bodies kill off infections.
  
  It might seem paradoxical but despite not getting fevers I fight off infections more quickly compared to most people and it's very rare for me to get sick. I got tested at one point and my immune system markers are all good!

I can bend my toes back and make some touch the top of my feet.
- Awesome! I have only seen people do it with their fingers.
  
  I can do the same with my fingers but not all the way back
- I have that with my thumb. A very useful QOL mutation when it comes to pushing on things

I sneeze when the temperature changes significantly. I have no idea why.

I too get the hot ears. I always worry it's a tell in poker.
- so its visible to other ppl too for u. Can other ppl feel ur ear being hot? Do you have dust allergies or allergies in general?
  
  I don't know how visible it is, and how much people are paying attention, but they do get red and I feel hot in just my ears. Too many allergies to count. Idk if it's allergy related or something up with my sinuses.

I can pop my neck at will thanks to a childhood judo injury. Thanks sensei!
I also have ridiculously sensitive hearing where I constantly pick up background noise, like a radio with its gain set too high. It's hard to hear people talk over the noise of a common house fan in the room.

I blush extremely easily when I'm aroused or embarrassed . My previous partner used to rely on it to see if her flirting worked and even tried to push it as far as she could to see how red I could get. The answer is very, very red! Even my chest starts blushing at some point! When I have an orgasm I'll often be blushing all over my body. Apparently it's normal and I don't have any health problems...
Also my sense of smell is insane, and I can touch my nose and my elbow with my tongue.

That's kind of crazy what happens with your ears with the pc monitor and all! Can you use over-ears headphones?
- I can use earphones that go into your ear but not headsets that cover the whole of my ear. back in school some of our buses had alot of dust in the seats, like my sisters bus.When ever i had to ride with her, it triggered my ears even if there is no visible dust in the air

If I leave my stomach empty for too long, I can feel (and hear!) gas bubbles (?) coming up in my throat lining.

I think it's pretty wild that the body will just accept exogenous cross-sex hormones and start using them without issue.
EDIT: well, a caveat would be that cross-sex hormones would cause gender dysphoria for cis populations, and their brains don't function as well on them, but I meant more like even a cis person's body will grow boobs on estrogen or grow thick dark hair and develop stronger body odor on testosterone. It's just wild the body is so adaptable, though maybe it shouldn't be surprising since most people have all the hormones, just in varying amounts.

I can pop my ears whenever I want, like someone else mentioned. Handy on flights, but I haven't been able to teach my kids how. If I forget to blink for a bit and then blink involuntarily when my eyes itch, my jaw snaps shut also involuntarily, causing my teeth to snap together. I can roll my tongue, which is apparently a genetic thing. I can hear high frequency sounds, like bats, and rodent repellents. It can be painfully loud when noone else around me can hear them, so they have a degree of disbelief if I mention it.

Mentally perceive sounds as color. I don't get the visual effect as with true synesthesia but more like my mind says "that sound is blue" when I hear it.

My neck clicks whenever I turn to the right.
- Usually if something clicks reliably, you should see a doctor about it. Once, or after getting up not an issue, but every time might be bad
  
  I've brought it up before but every time I mention it's been like that for over a decade, they all lose interest

I have a few
A Dexa scan I had done revealed that I have an incredibly dense skeleton in the top 1% of the US national database. It sounds neat but it does absolutely nothing to stop all the soft tissue damage that sports accumulates.
A genetic test revealed I have the super taster gene, some things taste godly but mostly things people like taste bad to me. Coffee, beer, wine for instance are all repulsive.
I have no refractory period. I can pretty much have sex as long as I want and cum over and over again. Record for a single session was 19 with a kinky femdom I used to play with. Despite what all of those female rap songs tell you, there actually aren't very many women that are ready for Mr all night when he shows up.
I heal incredibly fast, I had major surgery and I blew past all the normal milestones for recovery.
I have central heterochromia in both eyes which I'm told is attractive
I also likely have the genes for FNSS (familial natural short sleep) which basically just means that I am genetically predisposed to only require 4 to 5 hours Sleep a night to feel completely refreshed.
- Geez, look at mister perfect over here. /s
  Actually though, does your dense skeleton give you a resistance to broken bones?
  
  I do a few tough sports like MMA, bouldering, snowboarding etc and thus have never experienced any bone break, but I've had bad tendon injuries.

When I eat a few dill pickles, my scalp tingles. It's mostly a pleasant sensation.
- Chilly does the same thing for me, but it is never pleasant. Now that i think about it its more like an inch under my scalp than a tingles
  Also chilly makes me produce thicker and more saliva for almost 24hrs that i have to spit in a bin regularly

im not kidding when i drink milk, my stool ends up with blood. I thought I was lactose intolerant but I do need to check.
So far with lactose free milk im okay! so i can still eat cereal :)
- Lactose intolerance should just cause indigestion, not bloody stool. Definitely check with your doctor.

I get a searing pain up the side of my face if I yawn incorrectly
- Any other weird quirks you wanna share? Maybe something to do with your anus?
  
  before reading his user name, i thought this was so out of left field and rude
- Similar, its like muscle crap when i yawn too much so i cant shut my jaw for a few seconds

Sneezing when I eat too much, typically 3 times.

If I blow my nose too hard when I’m sick I get pink eye
I sneeze when I walk outside on a sunny day
- I sneeze when I walk outside on a sunny day
  Ah, the Autosomal-dominant Compelling Helio-Ophthalmic Outburst. AKA ACHOO Syndrome
  
  lol, that backronym is a bit of a stretch. Saying “I have a photic sneeze reflex” explains what I have. Saying “I have Autosomal-dominant Compelling Helio-Ophthalmic Outburst” makes me sound I’m having a stroke and saying “I have ACHOO” makes me sound stupid 😅
  
  I thought this happened for everyone? Like, if you have to sneeze, looking at a bright light, everyone I know tries that to make them sneeze. I thought it was normal.
  
  I have that too, but it requires a much higher intensity than just going out in the sun.
  i.e. I need to have slept for a while in the dark and then come out and stare at the Sun to get the ACHOO.
  Also, I once looked straight at a solar eclipse (don't tell my mother :P) for a few seconds and my eyes were still better than most other people for many years.

I can feel pain in my back and knees when I'm tired. That may be a tell that I'm getting old
I often have weird shakes when falling asleep, something like with epileptic seizure but only for a second
Sometimes I have this weird fucked up perception of scale or distance, laying in bed and it feels like the ceiling is like going far away. Also sometimes had this very anxious feeling of something like sheet of paper being crushed or something. Don't remember when these last happened but was really common when I was a kid
- sometimes, i get leg cramps in the middle of sleep and have to stay awake to keep my leg at an angle so it doesnt hurt too much
- https://en.wikipedia.org/wiki/Hypnic_jerk
  Could be that
  
  Yeah that sounds very familiar
- You reminded me that when I was a kid I had a similar weird scale thing happen often, but it was incredibly difficult to describe. It was very unsettling and I never really told anyone. I felt like words in my head were unusually big or everything in my head was really intense and urgent, especially my inner voice. It's like it was shouting at me, but not as simple as just volume. It's something that's seemingly impossible to explain. It was like everything was expanding or growing or like I was thinking louder, or just ... Bigger. I used to get really freaked out by it. Then sometimes it would be the same but in reverse where everything confusingly was small, quiet, and felt almost delicate. Yeah. I dunno.

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