Bean's approximately 8 weeks old now, I've had him for two weeks. He had a whole ordeal with parasites and fleas when I got him. He's since recovered from that and has seemed perfectly healthy over the past few weeks. But today I've noticed that he's been pretty mopey and sleepy. Normally he's quite active and playful, constantly harrassing the dog. But as the day has progressed he's spent most of it sleeping. He has eatten, not quite as much as normal though. I took his temperature, 102.1 F. Should I be worried? Do you think I should call the vet? Or just keep an eye on him overnight?