yea ive only had it happen to me twice though, this was back when i had seizures as a child, i think the epilepsy had something to do with it... but when it happened to me i was fully conscious, and couldnt move but i could look around, and i finally told my body wake up, wake up and i tried to scream out, but couldnt then i finally got a little scream out and was fine. it was kinda cool.