Last night my four month old kitten was much thirstiest than normal, and this morning he had a very soft, smelly bowel movement. He's gotten fluffy enough these past few weeks to make his backside hard to clean up now! The only weird thing he ate yesterdy was that he managed to get into his freeze dried salmon treats and eat much more of them than I usually give him. His energy and appetite seem fine, should I be worried? If not, when should I start worrying? He's very big and fairly hearty, but I know diarrhea can be dangerous, which makes me nervous.