Guinness (14 weeks) *loves* to eat, but afterwards he'll make some gagging noises, and he burps quite a bit, he's never thrown anything up, and it doesn't seem to upset him at all. I'm just wondering if that's normal. Currently he is getting a mix of Science Diet (small breed puppy), and Nutro Ultra Puppy.

He eats very enthusiastically, so I'm wondering if maybe he is swallowing air as he eats, or if there could be something else going on.