H.pylori is a stomach infection that can give you horrible stomach problems (I used to have it). To me, it felt like really strong hunger pangs, especially when my stomach was empty. When it got worse, I would get horrible gas and cramping in my stomach/abdomen about 15 mins after eating. To detect it, your family Dr. Can request a simple blood test for you. It is treated with a strong course of antibiotics. Just another idea to consider... Good luck!