My son is 6 weeks and I've been giving him infamil newborn and he's very gassy, fussy has trouble pooping sometimes and crys more often now. At first he was good with it but it's been about a week since his stomach doesn't agree with it. I'm worried I looked up infamil gentlease and it helps with gassiness,fussiness also pooping do any of you use it on your baby?? Does it really work??