Thank you all for the good thoughts.

He would not touch anything I tried to give him. He'll now only drink water if I coax him, not very willingly. But he drank a full bowl which was encouraging.

When Andy got home from work we discussed whether we should just take him straight to MSU or wait until the morning for the vet referral. Since the vets office has the results of the blood work and other notes, we figured we'd keep him alive during the night with fluids, and unless he took a huge nasty turn, take him to his 9 a.m. appointment for a Sub Q injection (and possibly get a few X rays) and take all of that over to MSU.

So far so good. He wasn't very happy with me when I turned on the lights this morning. His mouth is a little dry but his skin is not tenting.

I'm starting to wonder if I'm dealing with a blockage. He did have a greenie on the 20th and a bone on the 21st. Of course only an X-ray would know for sure.