I had my arm 90% severed in an industrial accident, judging by the amount of morphine they had me on, I must have been in a lot of pain. But I can't remember the feeling of the pain at all, but I can remember all the things I was doing to try and reduce the pain.

Every injury since (broken leg, broken collar bone, dislocated finger) has seemed like the worst pain I've ever experienced, but I know logically it can't be. And once I recover I forget the pain again.