I think I have the answer to this delima! Boo's 15th birthday was Sunday and she slept in my bed just about the WHOLE DAY! She didn't do her usual lap time in the morning OR in the afternoon. She hardly moved from the bed and I have to admit, I was really worried about her all day. It was SO unlike her to spend the entire day in bed. She only came up to the front of the house when I called and told her, her party was ready to start, she ate her tuna cake and went back to bed! Did they ALL slip away for a party for Boo? What else could explaine her being so tired all day Sunday?