Throwing up

Chantal

I have a 2month year old baby and for the past 3weeks he’s been throwing at least 2 times a day after 2-3 hours of feeding in his sleep. He’s been on the same formula since birth(Similac Nero Sure) my son is preemie baby . I tried to give him enfamil gentlease and all it made him have was runny yellow diarrhea. I don’t know what else to try , has anyone ever been through this who can give a little insight.