So about a week ago my cat had her first litter of 3 kittens, she has been fine since she has had them but today when i woke up i noticed she look really mad and stressed. Everytime i told her to come she would just stand there and not move, i was petting her and she wasn't purring, thats what she usually does. And everytime i pet her or pick her up she growls at me. Whats happening im scared shes hurt?