I have 2 week old kittens and I am a little worried. One kitten although fat and healthy seems lethargic. It sleeps more than all the other kittens and when I mean sleep I mean I can pick the kitten up and it is like it is lifeless. All the other kittens wake right up and seem to know what is always going on around them. Is this normal? Or do I have a kitten that is just a deep sleeper?