Max the Maine Coon seems to have dodged a bullet this weekend. I didn't want to say anything until I knew more, but apparently Max's heart condition flared up. He had a tape worm, we discovered suddenly, about the time he became weak, though his appetite remained good. All we could afford to do is give him a de-wormer and hope for the best.
Monday he suddenly came back to himself after two and a half days of giving us the heebie-jeebies.