My baby boy Ares had the same thing. I took him to the vet rambling about kennel cough, a collapsed Trachea , I mean he had the same symtoms! The vet had given Ares the "pink bubble gum" antibiotics... after a week Ares was fine! I allowed him food and water acess all day, I even offered some baby food (turkey, chicken gerber baby food), he also had a tiny amount of nutri-stat before bed... I mean he was totally pampered! lol I also put a heating pad (like 10 bucks at walmart) on low wrapped in a blankie. He was his stuffed polar bear in his crate as well! I hope your baby gets better soon! Hang in there as a new mommy I'm still learning and YT has all the info/ support you need!