Having upper gi done next month to figure out swallowing issues. what can i expect right before, during, and after procedure?

Endoscopy procedure: Before: don't eat/drink for several hours (they'll tell you how many). During: they'll give you a sedative to relax you (you'll be awake, and can follow commands, but very sleepy). They'll numb up your throat with a spray so you won't feel much. They'll give you certain commands to follow that help them perform the procedure. After: you may not remember much. Could have sore throat for a day or 2.