Hi. Thanks for your query. Noted the history and understood the concerns. Loose motions on eating outside food and oily things indicate that you have intolerance to certain foods, additives and oils. Or problem with bile secretion or pancreatic insufficiency. I would advise you the following: Tests of stool particularly when you have taken oily food in last dinner purposefully. Tests of blood for CBC, liver functions, amylase, lipase, lipid profile. Ultrasound of abdomen . CT. Scan to confirm if anything positive on ultrasound. Prevention is better than cure hence stop all the foods that cause you a problem. Repeated courses of Norflox TZ may not be a good idea. Complete the course. Take probiotics.