Apparently I am one of the rare people that remerabers the entire procedure despite the sedative they give you. Here is a blow by blow of how mine went. It is nothing to be afraid of. (Unless you take Valium often- as I do for panic attacks- you are unlikely to remeraber anything later).
First they prep you- you change into a gown and they put you on an IV.
Then they wheel your bed into the OR and they hook you up to the machines that will monitor your blood pressure and heart rate. I was nervous prior to the procedure, so mine were a bit elevated.
The doctor arrives and they spray the back of your throat with a rather nasty tasting nurabing solutions. Really, this is the worst part.
My doctor gave me a rather stiff dose of a sedative- felt something like Valium but stronger, through my IV. At first I felt a bit sick to my stomach, which they said would pass momentarily and it did. Then I just felt extremely relaxed.
The doctor will have you roll on your side. He will insert a plastic guide into your mouth that both holRAB your mouth open and guides the scope to your throat.
The doctor will apply pressure on the scope and request that you swallow. As soon as you swallow, the scope is in your throat. You don't feel much there. I was able to feel the scope a little in my stomach - I felt it puff my stomach up with air, then pull the air back out. The doctor may take samples from your stomach to test for h. pylori or other, and he'll take pictures.
When done, the doctor will remove the scope.
The entire procedure seemed to last just 5 minutes or so. I could have a time lapse there due to the drugs they use, though.
What you do not need to be afraid of: It won't hurt. You don't gag. You don't feel like you're choking. You breathe normally the entire time. And, at least in my case, they sedate you but don't fully put you under, which I prefer because I don't like to be knocked out.
After the procedure they will let you lay there for a while- you might fall asleep. Then they will wheel you into recovery, where they keep an eye on you. When you are able to swallow and your gag reflex returns, they will release you.