So I feel like we have tried so many different formulas and nothing is helping my girl. We’ve done similac advance similac total comfort similac sensitive and they all continued to make her very very gassy and uncomfortable and not pooping for up to 3-4 days so we switched her similac soy thinking it was a milk problem since her dad is lactose intolerant and I was while I was pregnant with her but now her poops are so hard and she’s having to push so hard and cry’s the entire time she’s pooping and still not pooping regularly. I don’t know what to do anymore. Do I try a different brand? If so what do y’all suggest?