I’ve had 4. Best 4 hours of sleep I ever had.
Aftermath was unnoticeable after the first 2.
After then last 2, it took a week for the innards to quit aching.
I came to during the middle of mine; saw the video (kinda cool) and then a nurse started beating on me to get the probe to go around the corners.
A nurse told me we are awake during the colonoscopy you just don’t remember it when you wake from the “twilight sleep.” Apparently this is true for a number of procedures.