Hi thanks for contacting HCM.... After taking food if stomach full than it send signal to intestine for evacuation. ... Thus is normal and called gastrocolic reflux ..... But if it is urgency to pass stool after meal and if loose motion present as in your case it could be functional bowel disease in form of irritable bowel syndrome ... Avoid stress as it is related to it .... Dietary fiber taken more. ... Fiber supplement useful for it ..... Proper history taken for alternate diarrhea and constipation and bowel habit to confirm IBS ...If present lubiprostone like specific drug given .... If still no improvement than endoscopy with biopsy done to rule out crohn s disease .... Stool examination also done for parasites .... Hope your concern solved ... Discuss this with gastroenterologist .