I don't really think this will be that helpful, but I figured I'd comment anyway. It's not the same as what you're experiencing but I have stomach issues (stool withholding) And it makes me feel disgusting sometimes. That's the best way to describe it, it feels unpure to even talk to about it. Anything that has to do with both the brain and the stomach will always have a special place in my heart. It may not be the same, but I'm always happy when anyone describes something similar to what I go through.