A middle-aged female, h/o loose stool from 1 year, 15-20 times per day. Initially, it was associated with blood but later on just watery. Associated vomiting. No blood in vomit. Diffuse pain abdomen, no radiation. No relation with food.

No fever, CBC within normal limits. Endoscopy- NAD, colonoscopy- NAD, celiac disease ruled out. Stool microscopy - NAD, irritable bowel syndrome ruled out, CT abdomen NAD except a small fibroid. She has 2 kids, elder daughter 5 years old, and a son 1 and a half-year-old. Please provide your suggestions.