[Blackdove]

I have a question on the Christmas Morning..We have a yorkie she is 8 years old, She was a puppy mill rescue, we have has her 2 years. She has been very healthy ,except for having to have all of her teeth pulled, but the past 3 nights she has thrown up yellow bile, also a white foam, I'm not sure what is going on..I would love any help thanks Sondra