I agree with the others. I hope you have taken her in. Can we get an update?
She can be in pain somewhere. It is very important to take her to see a vet. As Annie said, take the cats as well. When she isn't eating, the kittens are missing out on nutrients. She may have simply pulled something while giving birth but you can never be to cautious!
When you take her to the vet, take the kittens also. If she has not been feeding them, they will need feeding there. It is possible a kitten is blocked in the birth canal, she needs help and they need food. Go to the vet now.
HI NE,
This is an EMERGENCY--call your vet for advice until you can get her in to see an emergency animal clinic or your vets office TODAY!
Sorry but this seems pretty urgent and we are not vets.
PLEASE let us know how mom makes out, K!
We worry too!
Sincerely,
CML