Hi welcome to the health care magic Here abdominal pain and bloating present since long duration and occur periodically First stress related ulcer or irritable bowel syndrome like functional problem has to be ruled out.... Second causes like inflammatory bowel disease, Whipple disease, sprue, infective etiology etc has to be ruled out.... You have not mentioned site of pain from which further action can be planned If needed your endoscopy or colonoscopy examination done with biopsy... USG done as primary work up According to cause specific treatment given If functional bowel problem than antacid and fiber supplement prescribed... Avoid stress.. And eat slowly.. Take care Consult physician or gastroenterologist for examination and further work up