I don’t get migraines (I’ve seen in person what that does to you, I know for sure I don’t suffer from that), but sometimes I do have pretty severe head aches. Usual suspects:
- too much sleep; I sleep more than 8 hours in one go? I tend to get one
- not enough fluids is a sure way to get one. This is especially true when getting exercise, I need to bring water when I go out for a walk or I’m sure to get one when I can’t drink regularly.
- stress of course
- 3D movies put a terrible strain on my eyes, which of course results in a head ache. Luckily most 3D movies are useless, so I don’t have to miss out on anything.
Strangely enough staring at a computer monitor for hours on end doesn’t give me a head ache (anymore?), but sometimes I do start to feel sick to my stomach especially when playing games that do not have silky smooth graphics (unstable FPS or screen tearing). Usually a sign that I’ve been at it for too long.