Hi doctor My 3 months baby is on breastfeed and cow milk since birth. Someone in the family started cow milk instead of formula milk as initially I was not able to feed my baby. Even our doctor has not told about cow milk should not be given till 1 year. Since last 1 week I started formula milk (Lactogen 1). My concern is when he was taking cow milk his poop was thick And now after stating formula he staring poop in liquid watery form sometimes grey, green and yellow Color. From last night he is feeling feverish. Please suggest what to do