Woke up in the middle of the night to take a leak. As I flushed the toilet I remember standing there feeling very light headed. I turned around and started to walk back to bed but never made it. Apparently I passed out. When I came to, my wife was pretty freaked out and I felt like crap but, i've been knocked out in the past and it felt similar. I hit my head on the sliding glass shower door and have a decent sized knot so I wonder if I had a concussion, the thought crossed my mind last night as well but I said screw it and went back to bed. This morning, while playing it back in my head I can't figure out what happened. I've never randomly passed out before, any thoughts??
Background: Male, mid 20's. 5'9. 165 lbs. 15%-ish body fat. Regularly active. Non smoker. No history of randomly fainting..
edit: My wife said that from the time she heard me fall to the time I came to must've been around 2 minutes. She said my eyes were open but glazed, and that my body was stiff but not convulsing. Also she said that I was making some sort of sound that she couldn't describe.
Sounds like you had an episode of positional hypotension leading to syncope, or in other words, you stood up too fast causing a drop in blood pressure which made you pass out. If this was a one time thing you don't need to worry about it. Its possible that you could have been dehydrated. I'm more concerned about you hitting your head. If you ever pass out and hit your head that hard your should really go to the hospital for a CT scan. I know you posted 10 days ago, so keep that in mind for the future.