I recently had a patient who did something similar to himself through a "swallow water and immediately vomit it" cleansing ritual (that he prescribed for himself). He found 80% resolution through a change in flora, specifically by drinking kambuchu tea. The other paths we were pursuing included biofeedback, smooth muscle relaxants, and digestive hormone manipulation. I would discuss the situation with your locally licensed N.D.
I hope this is helpful. It is for informational purposes only, and does not in any way alleviate your need to have a local doctor that can advise you.