** Thanks for contacting with your health concern and since your age can t be deduced thus following points are worth mentioning: 1. going by your history and symptoms, the most probable diagnosis could be functional IBS [irritable bowel syndrome] which is a collection of symptoms ranging from bloating, burping, belching, diarrhea, abdominal pain, and constipation, so consult a Gastroenterologist for necessary examination and investigation, till then . maintain proper hydration [to prevent dehydration] and replace with electrolytes [avoid apple, grapes, pear juice which can make stomach upset]. - Avoid fiber-rich diet, since it can make bloating worse [instead take plain white rice, boiled potato, plain toast] - avoid eating dairy products, spicy food, and spicy condiments, stay away from artificial sweeteners. - take less of strong spices (ginger, garlic), oily-fried-fatty food and flatus producing foods (peas, beans, dals) - eat slowly, avoid haste-irregular eating and sweet/heavy food which are difficult to digest and cause indigestion - since it is a psychosomatic disease thus tranquility of mind is must, as such Medhya drugs or a mild tranquilizer are useful. PS. If symptoms persist, call your doctor since it can be symptoms of underlying illness or infection which require medical intervention. 2. As the age progresses people tend to produce less acid [HCl] called as hypochlorhydria resulting in impaired/slower digestion. ii. Lactose intolerance. iii. vitamin B12 deficiency [intrinsic factor] level also decrease as the age progress and thus they are more prone to atrophic gastritis, so it is best to take a dietary regime which is free from causing stomach upset/burping, like - Lactose-free product like soy milk, lactose-free milk, potato, rice, barley, margarine without butter/milk, fruit and vegetable juice, plain herbs and spice, jellies, jams - maintain a diet with low glycemic index/low fat. - eat smaller meals regularly and chew food thoroughly. - take a multivitamin which includes B3 and B12. . increase intake of fiber and omega 3 fatty acids.