hello there! Thank you for asking. I read your query and i want you to prioritize your effort for two troubles you are facing 1- Diarrhoea needs care. Rehydrate yourself. as much as you can. get some constipated diet like bananas or fibers with yougurt and soft diet. take a prophylactic ciprofloxacin 500 mg for 5 days twice a day. Add some metronidazole with Entemazole to be on the safer road. if it is not the chronic episodes or diarrhoea alternating with constipation then no worries, its innocuous and will go away. A weekends carelessness in food selection might be the sole reason. If the problem persists see the gastro enterologist for further management, Mean while continue rehydrating your self with electrolyte solutions. 2)Now your stomach pains and dyspepsias and flatulences Following will help Modifying lifestyle factors Neutralizing acid or inhibiting acid-producing mechanisms Enhancing esophageal and gastric motility You really need Dietry modifications. Avoid stimulants mentioned below Fried or fatty foods Chocolate Peppermint Alcohol Coffee Carbonated beverages Citrus fruits or juices Tomato sauce Ketchup Mustard Vinegar Aspirin and other nonsteroidal anti-inflammatory drugs (NSAIDs) Follow my below mentioned 12 POINTS AGENDA to treat symptoms 1.lose weight ( if overweight) divide your weight to the height in meters twice and if the result is more than 25 reduce the weight. 2.Avoid alcohol, chocolate, citrus based fruits,tomato based products 3.avoid pepper mint coffe and possibly the onion family 4.eat small freequent meals rather than large meals. 5.wait at least 3 hours after the meal to lie down or sleep. 6.refrain from ingesting food (except liquids) with in 3 hours of bed time. 7.eleate te head of your bed at least 8 inches 8.avoid bending or stooping positions 9.dont use nsaids 10.dont smoke 11. have a proper sleep routine 12. use cold milk as drink avoid all hot beverages and carbonated ones You need Medications Like Proton pump inhibitors (omeprazole, lansoprazole, pantoprazole etc) if the problem persists then. and if still unmanagable see the gastro enterologist to sort out the etiology for you Hope i was of some help. Take care of yourself Regards Dr S khan