Go see your doctor, even if you have to pay the cost yourself. My ex-husband ignored stomach pains for a long time and died of stomach cancer.

Proper diagnosis is essential early on, whether it be something as simple as chronic indigestion, or something more serious. A simple blood test can tell whether it is an ulcer and then antibiotics will treat it - this I know from personal experience.

It just isn't worth taking risks with your health if it can be avoided.