UPDATE - Stanley ate last night (bland diet) and did well. He woke me up at 1am to go outside, which is a bit unusual, but he went out and did is business quickly.
I spoke to the vet, she said probably a stomach bug and that we should do a dose of pepcid last night and try regular food this morning.
We tried regular food this morning, he wasn't interested so I put a scoop of bland diet on top of it. He ate the whole bowl and then proceeded to go right in the corner and throw it up. I guess I got too aggressive trying to get him back to regular food.
We waited 30 minutes and gave him bland diet and he ate fine and held it down. The regular food must be too heavy/oily for his stomach still.
We're going to stick with bland diet for a few days and see if it passes.
He's still not drinking, so that's a bit concerning, but I did the skin hydration test on him this morning, and his skin snapped right back. Plus he peed and was marking trees on his walk this morning.
Thanks to all for your help and suggestions. I really appreciate everyone's input.
Thanks @
2BullyMama, @
Donnam, @
Texas Carol, and @
TyTysmom