I lived a really sedentary lifestyle for about 10 years and everything started hurting. The good news for people in their 30s is that it's probably not too late to turn it around. It's crazy what a little exercise can do
I exercised a lot in my 20s but with my office job and working from home post pandemic I became extremely sedentary.
Maybe it's a good call to exercise again.
I also have to get over a sports injury with physio so I really should go back to the gym.
I'm 43 and rarely have aches (certainly nothing that would qualify as chronic), but I also regularly walk to and from the gym to weightlift. There's a saying "Movement is Medicine" and so far it seems to be proving true for me. Maybe if you don't use it you lose it.
I'm a bigger, tall guy. 6'4", and in my mid 20's 280+lbs. I was hired to deal with big heavy stuff. I'm no body builder by any means. Just larger framed. Still, often was hired to be a two legged horse. At the time I could do it. Now, I'm paying for it.