I was wondering what your vet said since my Yorkie Maggi had almost the same systoms last week. The vet could not find anything wrong so he gave her a B12 shot and a antibateria shot. She bounced back however now a week later, she got sick again, yellow vomit the color of a highlighter pen. She is at work with me so I can keep an eye on her and I have left a message with her vet. . Very Concerned Mom