Depending what type of insurance you have, you need a 2nd opinion from another gastro doc. And depending on your financial situation, contact a GOOD naturopathic doc (ND). Or even a nutritionist who's got experience around looking at diet and digestive issues. Having gone these routes myself for my years-long gastroparesis condition, I can tell you I've learned way more from from a good ND than from a regular gastro MD alone. In fact, I've used my Kaiser medical coverage successfully to get tests & prescriptions that the ND suggested (that was I had those costs covered).