Thank you so much everyone. The cat blogosphere is a truly wonderful place. Your prayers and positive energy really have meant a lot.
I wish I had better news to report. It's been up and down. Sadly, a bit more down. Sharon came to visit today and Grey was in better spirits than he had been. But he's far from out of the woods and some signs, his digestion and blood tests, among other things, aren't good. He's still not eating on his own. I'm sending daily reports to the Doc and he's called and emailed me each day.
So we're trying to keep him comfy, hydrated and fed... and loved.
Thank you all so much. I'll post when we know more.
Hugs to you all!