I have a y year old yorkie. Ever since he was about two, every few months for about a day he gets very lathargic, not interested in anything, just lays there. You can almost sense he is depressed. He acts totally opposite from normal which is a very happy energetic dog. It never lasts more than a day. What could it be?
I feel the same way every few months. I would not worry too much about it. vetcare