I have a young cat that just had 2 kittens a week ago. She initially was such a wonderful mom. Friday she was wanting to go outside and stay. I made her stay in eventually and I had to leave for a couple of days. When I returned one of the babies was dead. I really believe she killed it. She frightened me earlier with how she was attacking the surviving kitten and I stopped her. She acts frustrated to take the time to feed it. Then she took it and hid it under my recliner and isn't responding to its cries. Should I keep her away from it before she hurts or kills it? I've bottle feed many kittens throughout the years and had cats all my life but I have never witnessed this type of behavior.