This is easy to explain, and it happens to many people, including those just watching FPS games.
Basically, there are two primary mechanisms the body has to tell the brain that it is moving:
- the eyes
- the ears
The eye bit is obvious - you see yourself moving, say, on a boat. The ears, however detect movement because of a liquid inside that moves/sloshes around when you move around.
The reason for the nausea (and I've seen some awful cases!) is because the eye sees the movement, but there is no sloshing in the ears! Hence, your eye tells your brain, "Hey, I'm moving around", but the ears tell the brain, "We ain't movin' nowhere fast!", and guess what? Your brain gets confused and nausea sets in.
This affects a minor percentage of the population; basically, if you get seasick, you will most likely get "FPS-sickness".
In short, it has nothing to do with your age, rocketpig, and happens to young and old alike - so feel free to feel as young as you like!
