Hi im joan and had the Gastric Bypass Surgery April 27th of this year. I dident feel like I evan had surgery, of corse they do give you pain meds in the hosbital. No coplacations and i feel good. I just wanted to say that i'M Just now getting to know how it feels to fill full. Gurgel filling, no one told me but that is what will help you to know before the 20 min. you will do fine. Best to you!