I know, I feel as though I have to "trick" doctors into getting tests done as they are quick to right anything off as IBS and you're simply stuck with it.
Must of my theories of what's wrong with me state that I should have reflux and painful gastritis but I do not. It is most peculiar.
I am currently trying to eat easily digestible, low volume high energy density foods and under eat to give my digestive system a rest. Just got a lot of powdered eggs, will let you know if it helps.
I also took Antibiotics , proton pump inhibitors, and nsaids so either one could be at fault.