I have six inside cats (which get along great, two I have had for a long time and are getting up in their years sadly). Last Sunday a kitten stumbled upon my porch and adopted me. This is one of the most loving kittens I've ever seen in my life. Junebug is extremely active and playful with the other cats. Today however, he seems to be having a few problems. He won't eat any food, I can only get him to drink little water. He has been sleeping all day, and he is gagging up a white foamy substance. Does anybody have any idea on what this is, and what I can do to help him? Please help me