I had my mini gastric bypass on April 26th and I’ve had non stop gas pain. GasX seems to work a little bit but not as much as I expected. I was vomiting for 24 hours straight post surgery and I kept taking gravol which of course made me drowsy . So I couldn’t walk as much as I had hoped. Today is the first day where I feel a tad better. I should mention though my heating pad was my saviour. Good luck with your progress.