My baby is 3 months old and we are giving him similac isomil as he is having lactose intolerance. His poop is yellow but it is very sticky and he is having motion for 4-5 times daily . Previously we used to give Zerolac, with which the poop consistency is pasty and normal. He used to go once per day. He is not liking zero lac and not drinking much. So we switched to similac isomil. Please tell me if the sticky consistency in poop is normal or not