Easy peasy! I'm such a big baby about medical procedures and I wouldn't even sweat another endoscopy.
You just go in, get IV sedation, and as you're starting to drift off to sleep they spray a nasty numbing stuff in your throat. The next thing you know you're waking up. There's no pain whatsoever, no discomfort. Personally, the sedation lasts a long time with me, but that's just me. Most people are ready to go after it's over.
I know the last two I've had, I was even able to eat right afterwards.