good evening, ur baby is having lactose intolerance
which is only a transient phenomenon. dont be worried. get a stool test
to rule out infections as well because of the green colored stools. if the child is active , playful accepting feeds well, then do not be bothered. watch for dehydration- dry eyes
, dry mouth
, low urine out put. watch for blood in stools. watch for diaper rashes, in any of these situations, kindly review with ur doc.