Thanks everyone! So basically I stay the course, keep doing what we've been doing.

He went outside with all the others about an hour back, and of course did not come in. (Just before I started this thread) So after a bit I went looking for him, couldn't find him. He didn't respond to me. Dark and cold out there! Got a jacket and flashlight and went back out. I found him under the evergreen bush, he'd dug a hole way behind it up by the fence. When I tried to coax him out, he growled a bit (half hearted). Went back in, got a collar and leash, and with the collar on he came right along, I didn't even have to pull on the leash. He really feels lousy, poor boy.

So he came in, downed the water, threw it up, and has been snuggled next to me since, here on the recliner. He actually looks a bit "green" in his face, he is just miserable.

It's tough to limit his water with so many other pets in the house! LOL But I'll try that too.