Had a severe allergic reaction to penicillin, when I was about five. Was throwing up blood, amongst other things. A couple of years ago, I drank half a bottle of promazine (old-skool antipsychotic) after drinking to the point of paralysis. I'll never know why I did it, really. I collapsed within a couple of minutes. Then I just have slight memories of being on a drip, and being hooked up to a heart monitor, with wires. I spent the next 15 hours, or so, being observed. It took me ages to come round, and my blood pressure was dangerously low. My girlfriend was crying, next to my bed, because she thought I was going to die. I was too out of it to even understand what was going on, let alone think about death (I spent most of the time unconscious). I was sleepy for the next day or so, after being discharged. I avoided a hangover, though, which was definitely the only positive to come from it. I certainly look after myself a lot better, now. I was lucky, and I'm glad I survived.
Some amazing stories, in this thread.
Some amazing stories, in this thread.