My son doesn't seem to have a cold but we are having trouble formula feeding him. He's fine with breast milk but when given formula, even Gentlease, he spits up, arches his back and let's out little yelps, and when he falls asleep it sounds like he needs to clear his throat and snores crazy loud. It makes me so nervous and I'm afraid to lay him down. His doctor mentioned acid reflux but he's only 3 weeks and he can't be given anything like Zantac until he's a month. I just want to make sure this is a symptom of the reflux and not something else. Anyone have a baby with reflux like this?