I have been fostering a litter of four kittens with a mom. Two days ago the mother got really sick and had to be moved from the home. All of the kittens have been eating wet food and milk as well as drinking water regularly only hardly feeding off mom. About a day after mom left one of the kittens has stopped eating the milk/wet food mixture over the and is very lathargic, he will only eat a very little with a syringe. Also, the four all have constant diarrhea. They get dewormed and their first shots in about a week and if he doesn't start eating within a day I'm going to take him to the vet but I would really appreciate any input on what you think might be going on. I think he might be missing mom but I'm worried it could be some health issue.