Hello and welcome. It sounds to me like a possible gastrointestinal condition like gastritis, peptic ulcer disease, etc. Of course your doctor will require a more detailed history, but the treatment usually includes the use of antibiotics, medication to reduce acid production in the stomach like omeprazole, lansoprazole, pantoprazole, etc. Drinking pletny of fluids, avoiding stress, avoiding alcohol and smoking, eating healthier food and avoiding fatty/fried/oily and spicy food. Please meet a doctor for further evaluation and management. Best wishes.