hi doctors my baby is 4 M 26 days from starting onwards he is bottle feeding baby for 2 m no vomiting are there in 3rd month vomiting stated got more in this 4 month we are changed no of formulas like similac,dexolac now Infamil. but still he is doing vomiting. he is enjoying drinking similac and dexolac but infamil not showing that much of interest to drink. any problem for baby if we are changing the formula milk like this? is Infamil good to use. I am so worried please suggest