Yes, battled it for 3 years before I knew what it was. Thru my own research, I figured it out and found a GI Dr that had some experience treating it. I did the Tri-Smart breath test and it was came back positive for Hydrogen and some methane gases. I took the Xifaxan for 2 weeks. Ate as normal of a diet as I could - to wake up all the bad stuff, haha. About 4 days into the meds, I started experiencing die off of the bad bacteria, which is normal. About 1 week after I finished the meds, I was good! And very surprised I no longer had the constant bloat and painful gut. But as my Dr suspected, the methane gases have returned, but not as bad as before. I can deal with the burping and gas. Dr Mark Pimentel at Cedars Sinai is the best expert I know of. Check out his books - very solid guidance. For many folks, the meds don't help. It's a very complicated issue. I do know that many say it boils to your intestinal motility.