My boyfriend's grandmother died in March and left him three cats to take care of, in addition to the one he already owned. Two of them are happy, healthy, and friendly, but the third is not. Mia is 6 years old and in perfect health according to the vet. However, she's more than timid, she's terrified of people. If I didn't know her history I'd say she had been abused. She cowers and squeezes her eyes shut if you try to pet her. She hides except to use the litter box and eat, and even then she will stop whatever she's doing and run if a person comes in the same room. Apparently she has always been shy, but this extreme level of behavior started after his grandma's death. Could it be a reaction to loss? Any other ideas on what might be causing her behavior or how to help her?