I eat Italian Galeffi Effervescent when my stomach hurts. It really helps! However, it is rare to find it in this country. So I suggest you make yourself a nice cup of bay leaf tea. Or have a banana. I hope you feel better soon :)
My doctor told me to take MiraLax and Meta-mucil MultiHealth Fiber, not the one with the Lax, but the one that is 100% Natural Psyllium Husk. It worked just slight pain every once in a while, I will nerver stop taking the Meta-MultiHealth. I feel like a 10 year old, with nothing wrong with my digestion. Hope it helps, check with your doctor to make sure it is safe for you to take.