I had my gallbladder removed about 10 years ago...almost died from it apparently ( a gallstone perforated the 'common bile duct' connecting the gallbladder to the lower intestine, resulting in infection and *tons* of pain). Anyway, prior to the final diagnosis, I tried many different "heartburn" treatments, including a prescription for a heavy-duty antacid (Prilosec, maybe?). None of the treatments seemed to work.
Finally I got fed up with pharmaceuticals, did some research and found temporary relief with an herbal preparation of my own invention.

I mixed together 1 ounce, each, of powdered ginger root, licorice root and caraway seed. I then put this into gel-caps and took 2 whenever I started to feel a little heartburn. Within 15 minutes I was usually free of any discomfort/pain.

Granted, this will only treat the symptoms...but it may give you some relief until you can figure out, and take care of, the cause of your gastric distress. For me, it certainly worked better than any of the prescription-strength drugs and standard over-the-counter stuff. I still make up about a hundred of those capsules per year, just in case I eat something that "disagrees" with me.

Hope this helps.

Blessings,
Becky