It was the freakiest sensation of my life. I started counting down from 100 and when I reached 73 everything got really really dark, and I started feeling a burning sensation in my chest and it really started to hurt, it hurt to breathe and I was thinking, "Maybe it's working" so I didn't do anything, i tried to remain calm but the feeling grew more painful until I couldn't stand it anymore so I forced my eyes open and I haven't been able to sleep since. What happened??