Great.. I've read about that before, and it's something I never wanted to experience. What causes it? Stress?

So that makes me wonder now if I really did yell, at least I thought I yelled. Not sure if my roommate heard me. Maybe he didn't respond cause I yelled "Mum" ? Heh..

That's possible too, I don't know, but I don't remember having "visions" or I think I would have remembered something important or whatnot. Funny you would mention that though.. I was scared and one of the things I remember trying to yell/think was something along the lines of "God what do you want?" or "What are You doing to me" ..

I just hope it never happens again.