I was taking nexium every day for my heartburn/gastritis until my hair dresser told me he went to a chiropractor which completely cured his heartburn. I was pretty skeptical at first, didn't think chiropractors even delved into this area. When I went he pushed this vertebrae in my mid back and i felt this full on nerve twinge, 'that is the nerve that connects to your stomach and pancreas' he said. Basically I had a small misalignment that was blocking the nerve function to the stomach causing the heartburn. One month later after several sessions I have a stomach of steel.
I would really recommend this approach, the place I went to had a big book with a whole bunch of testimonials about people who suffered from similar stomach complaints.