Lots of things. apparently, there are many factors according to wikipedia that can produce headaches. Now, from my pov, an avid headache sufferer, I have no idea. I think being tired has a lot to do with it. I would like to blame people, and that is what I was going to do. Blame all the silly people that I come into contact with and the crap I deal with, as the source. Anyway, I think a good nap can solve this one. I don’t have time for nap, but I really want one.
apparently water helps too? Maybe I’ll hit up the water.