Lisa, could it have something to do with the thinness of the liquid? I know that you once mentioned that he has some issues tolerating thin fluids. Juice is actually much thinner than formula, so maybe if he is refluxing it, it is causing him to choke/gag on the way back down. Hailey also has this problem if I give her water from a cup (which she won’t take now anymore)- but hers was about a minute or so after finishing so I figure that some was still pooled at the back of her throat, and that was what was causing it. You could try thickening the juice and see if that changes things. Just some thoughts…