Any milk formula recommendation for 2months baby?

My baby vomit quite alot after fed. initially she was breastfed but now change to formula due to personal reason. at first she drink mamex, she vomit. change to frisolac,still vomit.. now enfalac A+.. the vomit become worst. we did check with doctor and he say this is normal. any recommendations? pst: i am not sure is it because of milk formula or not..