Help change formulas 🥺

My two month old daughter has had two ER visits Bc of severe gas and what also seems to be constipation Bc those two ER visits they made her poop and then she’s fine. Just this Thursday I had to take her to the ER Bc she was basically 3 days of crying and screaming on and off! Thursday got to the point where it got really bad she was crying for basically 5 hours and couldn’t nap at all! I took her immediately To her pediatrician and she sent me to the ER to get a sonogram and X-rays done she had so much gas but once again they made her poop and all was well! The ER doctor told me to try other formulas and to ask her doctor but she hasn’t said anything of switching formulas! Again today she’s like that again and I even texted her doctor it’s already three times where she gets really bad and I feel it’s her formula!! Please since her pediatrician seems like she doesn’t care what formula she’s on I really want to try something else right now she’s on Enfamil gentlease. Please anyone who’s baby had similar experience like mine what formula did you give them *NOTE SHES ONLY FORMULA FED*