I didn't have any gas pain. He also fixed my hernia when he was in there. I had revision band to sleeve at the new CER surgery facility. It is super clean and state of the art. Dr Garcia is very caring so don't be afraid. He and his staff do this all the time so everything moves along like a well tuned machine. Just trust in the process and things will go as planned. Honestly the hardest part was doing the barium swallow. They make you down 3oz at once NO SIPPING and after sip, sip, sipping Water in the hospital it is super scary downing 3oz and the taste almost made me gag. So if that is the hardest part YOU GOT THIS VERONIKA