Hello thus could be due to acid peptic disease indigestion gastroenteritis worm infestation or aerophagia i would like further information to help you better your age sex and complete medical history any history of chronic disease like diabetes or liver disease are you under stress or having anxiety are you having any medicines I my opinion you should consult a gastroenterologist for examination and a battery of tests like liver function test ultrasound or upper GO endoscopy you can take omeprazole group of drugs with antacids have plenty of fluids and lots of fruits and vegetables hope this helps you best wishes