My local GI said he'd rather I not use it because it binds things so much it might hinder the medications I take such as for my thyroid and antidepressants. I have chronic cuffitis and thought it would help it by neutralizing some of the acidity flowing through.
I don't like your doctor's attitude! You are the one experiencing the reaction not your doctor. If you are not benefiting from using it then stop using it. I haven't seen much discussion about it's use in this support group therefore doubt it is used much. I relied on Metamucil and digestive enzymes for over a year after my take down until my plumbing got use to the added acidity because we no longer have colons.