Good news she seems to have stopped shivering now. The pups are actually quite a bit bigger than the last litter, that could be why she looked bigger. She hasn't moved from them at all but I've put her food right up close to her and she's eaten a small piece of cooked chicken. She brought up some of her milk but I think it's because she drank it so fast and maybe had a bit too much. Ahh, I feel better now. Thanks to everyone for your replies.

Regards,
Dianne