My 1 year old cat Izzy had 3 kittens last week. I was really afraid that as she was so young she would reject them. Every thing has been going really well until yesterday when i noticed that she was biting them whilst cleaning them. It is mainly on the throat and neck she bites them and I can tell that they dont like it. She always stops after a while and feeds them normally? Can you tell me why she is doing this?