If your female cat suddenly changes her temperament and bites you, it may be because she is in heat. Cats in heat are usually more irritable, so you can buy her some toys to help her release excess energy, or have her spayed or neutered.
It's also possible the mother cat is sick. If she has an illness such as skin disease, joint disease, or dental disease, it can cause discomfort and make her sensitive and irritable. It's recommended that the owner take the cat to the vet for treatment as soon as possible.
