My son 3.7 year old. 3 days onwards 3 times per day poop looks normal but not smooth and sometimes little but greenish. Today I mean 4th day he had stomach pain and poop was loose. I had doubt is something swallowed with out my notice. Iam worried so much.. if kid something swallowed means what is the symptoms and how long it will stay in body.. he was fine and active past 3 days only above said poop issue.. but today he was very sleepy.. suggest me