I have a question that I hope someone can answer. Whenever I'm watching TV or a movie and it shows a person falling down or hitting something, I can feel it. Not the pain but my nerves twinge. It's hard to explain. Right now I am watching X men and when the character Scott gets thrown onto his back in the scene with Jean Grey, my nerves twinged. It happens when i watch a commercial where the guy is bouncing on his stomach on the pavement. What is this and why does it happen? I'll ask my Doc when I see him but wondered if any of the medical people here have heard of this type of thing?