They made me keep my bed at a 45 degree angle the whole time I was in the hospital and the CO gas pain was minimal and only lasted about a day. Much better then when I had my gallbladder out, that was miserable. The extra strength GasX strips worked for me after I got home, they also gave a liquid while in the hospital for gas, it helped some. Some of the other discomfort you feel is from esophageal spasms when it gets mad because it can't move things into your swollen stomach very fast. They can give you something for this too, and it helps. Good luck with your surgery.