i had Mac to the vet today and they could find nothing really wrong with him. His heart was strong, teeth were great, not masses found, and he is in no obvious pain. They took some blood and are running some tests on it today. They will let me know tomorrow sometime if they find anything. He hasn't lost as much weight as I thought he did, he still weighs 6 lbs, he's only lost a pound or so. They gave him an appetite stimulant and we are going to see how that works. The vet told me she didn't think it was anything that serious, his heart rate is good and she said she doubted it was a thyroid problem. Well, I guess the bloodwork will tell the story. Keep the good thoughts coming.