I had my duodenal switch operation 12/11. I'm scheduled for surgery again on Feb. 7, 2017 to make common channel longer so I can absorb my Vitamins. I have very foul gases and stool at this time. Has anyone had this procedure and does it help with gases and stool. Vitamins? p.s. very embarrassing. wont even sleep with the wife because of this. Help!! Thank to all that could give me some insight. Have a good day.