I have to feed LO formula this week because an antibiotic I'm on is not breastfeeding friendly. LO is 2 weeks old, and ever since I started giving him formula, he's had liquid brown poops - pretty sure it's diarrhea. I called the ped, and she recommended I switch his formula. She mentioned using a soy based formula, but if he tolerates breastmilk, would this really be caused by dairy? Or is soy just easier to digest?

Did anyone have this issue? Any formula recommendations? I just feel so terrible, he's obviously uncomfortable and I don't know how to fix it