First i'm a teenager.I used to smoke quite a lot and then i stopped for 6 months but Lately i've been feeling really weird. I started taking birth control around the same time i started smoking weed again and yesterday i smoked with my boyfriend and i passed out or something a few times. my boyfriends seen me pass out plenty of times but he says that this time he thought i died. (also about two weeks ago i drank and my body started spasing out. what i mean by this is that my body would violently flail while i'd be unconcious. i went to the hospital and they said i didn't have alchol poisioning) so i thought the birth control had something to do with it. also lately i've been feeling really light headed and passing out a lot, my neck has been killing me, and i feel like something is REALLY wrong with me. i'm having mood swings, blanking out for whole minutes at a time, and crying whenever i have even the smallest reason to. What could possibly be wrong with me? Someone please help me, i'm really scared.