My baby completes 3 months today n hasn't been taking the feeds properly. She's exclusively on formula. She was having a lot of gas issue so we changed the formula from aptamil gold to similac total comfort which started suiting her n the feeding improved. She's too active n responsive. However a month back her bilirubin level was high n had the same issue so we treated that. She was having a diarrhoea and loose motions following that so gave enterogermina and is also giving z and d plus) Now the issue is when it comes to feed she hardly takes 20-30 ml and starts crying n stretching her body. At times we check the diaper and if it's dirty then after changing it she won't even touch the milk and now a days has started spitting for around 7 8 times. Only the night dream feeds are better. We gave her stool for examination 3 days back. Had 3 USG for abdomen till date and all are normal. We went to the gastroenterologist and he said she is normal. How to improve her feeding?