Hi, many thanks for the query!
You need to do- Stool (Culture & Microscopy), USG (Abdo-Pelvis), CBC.
Take antispasmodics, antibiotics, antacids, anti-emetics, appetite stimulators with
your doctor's opinion.
Drink plenty of water (preferably ORS).
Eat high fibre diet, green leafy vegetables,
avoid milk & milk products, avoid spicy & oily food.
Do regular exercise, Yoga
Wish you a good health.