mh baby boy is 4 months old he is on exclusive formula feed, but he only takes 90ml nan pro in every 2 or 2.5 hours. not taking 120ml , whenever I give him 120 ml he vomits

A. So if your child is having 90 ML every two hours to 3 hours which is a decent time track so it’s not a problem so feed according to the requirement of the child and if your child is giving proper weight and the milestones are reached then there is no problem