That does not sound good at all, I would not wait until Monday. Is there
an emergency vet you can take him? I'd get him in immediately.

Since the first vet didn't find anything, it would be good to get a
second opinion anyway. It looks like time is not on your side right now
though, besides the new symptom -- cats cannot go longer than a day or
two without eating before they start to develop fatty liver disease.

Let us know what happens,

Rhonda

nldiggs99 wrote:
My cat has not ate for a few days, drinks water but then throws up. My vet
said to bring him in on monday. He did this same thing back in June and they
did blood tests, xrays everything and found nothing wrong. Well, today after
I got off the phone with my vets office he vomitted again but this time it
wasn't clear it was dark green almost black and smelled just like diarrea.
Anyone have any ideas what this could be? He's only 2 years old.