I just fed Dd who is 4 weeks old and when I burped her, she let out this SUPER guttural, really loud, sounded like she was hacking up a loogie, "burp" I guess, but it did NOT sound like a burp.... A little tiny bit of milk came up with it, but not a lot. It like, took over her whole body and really kinda freaked me out!!! What the hell?
My son used to do that when he was itty bitty. It happens. (Yeah, freaked me out too...)
Well, sounds like she puked/spit up some of her milk. Freaked me out the first DS ever did it, but it wasn't anything we needed to worry about lol :)