Hi. Thanks for your query. Noted the history and understood your concerns. Pooping water that is watery diarrhea without pain in abdomen and flu like symptoms are due to intestinal infection. It is difficult to say whether this is bacterial or viral. Hence I would advise you the following: Get the stool tested. Blood for CBC, culture and sensitivity and any other as would be advised by your Doctor on clinical evaluation, examination. If there is an infective diarrhea you will need an antibiotic active against intestinal infection and Metronidazole. Activated charcoal, probiotics helps further. Take banana, yogurt/curds. Plenty of oral fluids to avoid dehydration.