anesthesia
"I had my endoscopy and colonoscopy yesterday for the first time. I was told I would be sedated during the procedure but I didn't investigate into it too much. I don't have previous experiences with any major medical procedures so I didn't really get into the details beforehand. 
Once in the procedure room the nurse told me that I'm going to sleep and gave me the injection. My eyes closed 5 seconds later and the next thing I remember being awake in the recovery room. I was dizzy and a bit disoriented for 15 -20 minutes but I felt great. 
Later when receiving the document from the doctor I learned that their drug of choice was propofol. 
I would go not be afraid to go through any medical procedure if this is how propofol makes you feel!"