My cat Sassy gave birth yesterday to five beautiful kittens and did a marvellous job, however, since this morning she has been leaving them in the closet where she had them and been wandering around. Sassy has eaten well and used the potty, which I have put next to her and the kittens. When she left them she found somewhere else to lie down and sleep. A couple of times she has meowed to me, she seems well, but I am concerned she may not be giving the kittens the attention they need. Sassy has returned to them a few times but seems to leave them after a short while. Is this normal, should I be concerned and is there anything I should be doing to help??