It is nothing specific, she just doesn't seem right. KWIM? Earlier when I was petting her, I was petting towards her back/top of her tail and she meowed, but it was very sad sounding.
Could it be that she is sad because of Sally? We have had Sally for almost three weeks now and Cassie gets along with her great. She just seems so sad. Her eating, drinking, and potty habits haven't changed. She has always been a quiet, keep to herself cat, but lately it seems worse. I do have a doctor's appointment for her. Maybe I'm just reading too much into it.