About every 6 months or so I have a passing out episode I cannot figure out what causes it! It’s the same thing every time my stomach starts to hurt then my vision goes black and my hearing gets messed up it sounds like static on tv then I pass out for a couple seconds and wake up dripping with sweat and then start shaking and freezing. After a couple minutes I feel completely fine. I have no idea why this happens but it started when I was 13, I’m 21 now and happens about ever 6 months it doesn’t have to do my with period or stress. Has anyone had something similar happen to them?