Would a surgical puncture to the skull relieve a pressure headache?
So obviously I know that this isn't the solution, but would a hole in the head equalize the pressure and relieve pain? Or are pressure headaches within the bloodstream or something internal?
Really wish I had a tire valve on the back of my neck to balance out.
You should look up trepanning. It is the earliest form of surgery we have archaeological evidence for (like back in caveman times). Basically, intracranial pressure would be relieved by drilling small holes into the skull using flint. Something like 5% of all skulls archaeologists find have evidence of trepanning, and it's clearly deliberate, not a war wound.