So I supplement formula as I work and suck at pumping enough for all his feedings. I was trying Enfamil Gentlese which seemed fine, but has he started to eat more, I noticed he gets a rash. And he’ll get a tummy ache that causes him to scream if he gets too much. I tried the Similac sensitive and that gave him an instant tummy ache where he cried for 4 hours and refused to nurse. I thought about trying a soy one, but I eat dairy and he does fine with breast milk. Does anyone have a suggestion? Also do you guys know how to get samples? I signed up before my baby was even born and never got any.