Re: EBF 3.5 month old switching to FF which formula?
I'm very sorry to hear about your cancer. T&P for a speedy recovery.
As far as formula goes, we started with it right away w/ DS b/c of issues I had with pregnancy and delivery. My hospital used Similac and that has always agreed with him. I got a bunch of free Enfamil from my OB and that didn't work so well for him, gave him diarrhea. He did fine on the En***row toddler formula he's had 2x though, so I think his stomach is more mature now to handle different kinds.
GL finding something that works for your baby.