Thank you Gigi, a while ago I read about
the same thing.
There is also a simple baking soda home test to see if you have low, normal or much acid production.
www.zen-tai.com/assets/u/stomachacid.pdf This is a dr approved simple test. I want to try this too but the baking soda is kinda, yuck xD heheh
Though, it is always best to get a dr opinion if the digestive issues are very bothersome and painful.