For some reason, usually about 2-3 times a month, I'll be laying down like normal, trying to sleep, Usually sitting and watching my mind wander, not literally watch it, since I absolutely suck when it comes to HI. But I'll be laying there, thinking about random stuff, then I'll usually get this sudden feeling like I'm about to get hit by a car, or get punched, something like that. I then try to dodge and my whole body jumps, then I usually am fully awake after this. This isn't a dream thing, it seems to happen at that stage right before you lose conciousness and fall asleep. I don't know what this is, I figured it was a Hypnic Jerk, since the symptoms match, any ideas? Thanks for reading