Cookie,
Is there a chance you could be having bile reflux along with the acid reflux? For me the omeprazole wasn’t working for my reflux so my GI doc prescribed Colesevelam 2x a day and that has worked better. I don’t have a gallbladder anymore so bile reflux made sense.

I do not have the condition you mentioned but I do have dysphasia so have to get my esophagus dilated yearly.

I hope your appointment at Mayo will help you come to a clear conclusion.