My 1 year old poodle mix is not eating his dry kibbles. He threw up yellow bile three times for the past couple of days. Should I be concerned? :(

Yes, take that animal to a vet immediately.

I would call the vet. Dogs, especially younger ones often ingest things that don't agree with them and are sick. In such a case, they are usually fine in a day or 2. If not, as in this case, it is time to call the vet.

Vet vet vet vet vet vet vet vet vet vet vet!! Did I mention VET!?