Paco just turned a year old and as far as we can tell, is quite happy and healthy. However, since Friday (3 days ago) he hasn't eaten much at all.
I think he ate his dinner Thursday (I wasn't there; I'm going off of what Chris remembers) and Friday I put his breakfast out. He vomited that morning before eating - bright yellow, almost like paint, actually. He didn't eat, and I figured it was because he had an upset stomach.
He picked at his food that night, but didn't eat anywhere near as much as he usually does.
Saturday (yesterday) Chris saw him vomit a little bit of white. He continued to eat just a few bites of food for his meals. Today neither of us saw him vomit at all, but he still has had "maybe" a cup of his usual dry dog food over the last three days, and he usually has nearly 2 cups a day.
He continues to take cut-up hot dogs as treats, as well as bits of cheese. He also is still drinking water. We recently tried some new "chicken ball" treats that Chris brought home from a trip. Paco likes them and still eats them, too, but I'm wondering if maybe this new treat is the problem.
Should I take him to the vet tomorrow, or just experiment by stopping on the treats for a while, or what do you guys think?