I think I posted a little about this a few years back, but over the past few years, if I have a coughing fit, I literally black out for a few short seconds. It's only happened about 4 or 5 times, and I only black out for a very short period of time... Except...
At the beginning of the summer, I was out to eat with my wife. We had finished eating, and were chatting, and suddenly I felt a coughing fit coming. I remember saying out loud, "No, not this again," and I apparently passed out for over a minute.
My wife ran around the table and caught me from falling, and said I wasn't breathing at all.
As I came to, I remember having this overwhelming feeling of being bear hugged too tight, and started yelling, "No! Stop!!!" At the top of my lungs. Came to. Immediately realized what had happened, and started apologizing to the entire restaurant. Asked to be helped to the bathroom, and proceeded to puke and heave for 5 minutes.
Had to go on an ambulance after that, but, as I was without insurance at the time, declined to go to the hospital.
Yes... Scared the hell out of my wife (and me, as well, to be honest).
"Let's all get the same girl pregnant, tonight!"