Hi, Your symptoms are nonspecific, but these may be suggestive of gastritis, GERD or hiatal hernia so you should do gastroscopy to evaluate it more accurately. This is caused by irritation of stomach mucosa by certain food or medications, stress and smoking. It should be treated by changing lifestyle habits first and in severe cases medications or surgery may be required. You need to eat smaller meals but or frequently , avoid long sitting after meal and regulate your body mass. You need to avoid fried food, carbonated drinks, coffee, alcohol and spicy food. You should eat more milk products, vegetables and boiled food. Also, certain antiacid medications may be required by diagnosis should be established first. Hope I have answered your query. Let me know if I can assist you further.