Originally Posted by DiabloScott

Yeah I had Propofol, I remember asking the anesthesiologist "When am I going to start feeling sleepy?", and that's the last thing I remember before his waking me up afterwards. It's kind of creepy to know that I might have been conscious and awake during the procedure, but just don't remember it. I don't know what kind of gas they used, but I didn't have much distress afterwards.

And I considered the preparation to be a challenge - I wanted mine to be the cleanest colon they'd ever scoped. Totally not that bad.