I just got back from Jacksonville Mayo for the second time. I have a bit different symptoms but also spent 8 years of Gastro docs and not getting any better. Trick to Mayo is to keep calling them and one day I did. I also moved across country to try more docs , so I know what you mean there. One day I called Mayo and suddenly poof! They made my appointment. They will listen and go over every item with you then hang on tight for every test you can imagine. It was exhausting but I leaned so much about what I really do and do not have. I go back for a third time for more test but they have been great with me. I feel like now I am on great hands. Have you had an endoscopy done yet?