My gadtroenterologist has done a EDG and a colonoscopy. But not the gas test. I don't even knows where it can be performed because he hasn't suggested it. Instead he is sending me a the Mayo clinic for testing to see if there are issues with my liver that are causing the problems. He thinks I only have a mild case of IBD. So there's not much I can do unless the Mayo clinic decides to do testing in this area as well. I'm scheduled for 1 day of testing. But things can change or we may need to go back at a later date. My insurance co-pay are high when it comes to testing. Blood work doesn't cost us anything. I'll talk to my GI doctor about the breathing test to see if he can get authorization for it and can find someone who does this. Thanks for the suggestion.