Tomorrow is my egd. What's the purpose of it? Is it to assure the liver is small enough? How will I feel after? Does it hurt?

My experience was weird. They gave me the drugs, I walked in and laid down and they put a mouth guard in and put the scope down. I walked out. The weird part is I remember telling my grandma (who was with me) about what they did but a few hours later I didn't remember the procedure; I just remembered what I told my grandma what had occurred. No pain but as others have mentioned, I slept all day and was very drowsy. Good luck!