Hello, you should understand that stomach pain occur due to numerous reasons like gastritis, food allergies, food poisoning, constipation, lactose intolerance, gastroesophageal reflux disease, ulcers, indigestion one of this might be the cause for your problem.Based on the history you have given it might be due to gastritis/ indigestion..indigestion can often be helped with lifestyle changes, including:
Eating smaller, more frequent meals.
Avoiding triggers. Fatty and spicy foods, processed foods, carbonated beverages, caffeine, alcohol and smoking can trigger indigestion.
Maintaining a healthy weight. Excess pounds put pressure on your abdomen, pushing up your stomach and causing acid to back up into your esophagus.
Exercising regularly. Exercise helps you keep off extra weight and promotes better digestion.
Managing stress. Create a calm environment at mealtime. Practice relaxation techniques, such as deep breathing, meditation or yoga. Spend time doing things you enjoy. Get plenty of sleep. If not satisfied kindly consult a physician for further management...