Thank you for posting your query. differential can be GERD ,gastric neuropathy, gastritis OR ulcer. further evaluation is needed. if age 55 , better to straightaway undergo endoscopy. if ageis he anemic? how often does he pass stool? color of stool? if anemic or black colored stool , visit a gastroenterologist asap and undergo endoscopy? if NOT anemic and normal bowel habits, then; undergo any test for H.pylori ? do it either by stool antigen test OR by urea breath test. if test turns out to be positive , then you need eradication therapy and visit your treating physician with all the results. Meanwhile, you may take - Nexium 40mg , once daily before breakfast. - metocolopramide aids in stomach motility and maybe used also -Avoid spicy food, oil rich food, - No smoking and NO alcohol. - do NOT eat mouth full. -no cold drinks and NO junk food - eat more fruits especially those rich in vitamin C (citrus fruits) - try to avoid drinking water at the end of a meal. if any further questions, feel free to ask. Health professionals aim to diagnose properly and manage patients according to their limited knowledge. Cure is blessed by the ONE who Created us, whose power and knowledge is unlimited . wish you good health. regards, Dr Tayyab Malik