I've had both IBS and GERD for nearly 30 years. I really suffered with the GERD until the PPI's (Prilosec, etc.) came out. That's the only thing that controls it - previously I was on Zantac 150 3x a day and still had reflux. Prevacid doesn't work as well for me, Nexium worked great but gave me side effects. I've tried going off Prilosec and trying natural solutions (DGL, orange peel, etc.) since I'm concerned about the long term effects but after a few months I go back to it - I end up with not only reflux but a burning sensation throughout my entire GI tract. Very miserable, as I'm sure you know. I haven't come up with any better solution.
-------------------- IBS-A and GERD since 1983
Low FODMAP since 2012