We have a 7 month old male nuetered kitten who has recently stopped eating and cleaning himself and he is very lathargic. We have tried giving him 2 different kinds of dry food and 2 different kinds of wet food. We also took stool samples to the vet. When nothing helped we also took him to the vet and the vet game him a shot for nausea and anti inflammitory and also gave us an oral anti nausea medication to give him at home. He is still not looking any better and not eating but he is drinking water. We have 2 other cats that are doing fine. It looks like it hurts his teeth to eat but we have checked his teeth and they look fine. We are getting very worried about our kitten he used to be very playful and barely moves now.