WTF happened to my eyes?!?

Question

I was playing Guitar Hero III, and when I was done with Knights of Cydonia on Hard, I looked at my chair, and it was BENDING. I looked at the dresser and it started bending too. I looked at my hand, and guess what? It was BENDING. It's fine now, but WTF happened.

Answer 1

You were staring at flying notes for too long. Eye strain.

Answer 2

It's probably an after-effect of the games you were playing. Where you see everything like how it is in the game.

It's also like after going on a rollercoaster - where you can still feel the motion like as if you're on it even though you're not.

Just take a break and you should be fine.