Turns out this girl is not only huge, but she is at least 16 years old! We dewormed- deflead and drew blood on her just to get a baseline and see if there is something internally working against her. She scared the vet tech when she tried to climb the wall twice, and I just told the girl to calm down and let me handle her. She was fine, once she was in my arms, but her growls are quite formidable.

Here she is, not the happiest kitty camper on the planet but looking better than when I found her- She is 19.5 pounds and I have to say my vet was quite impressed with her size. He said she must have Maine Coon in her because her bones are huge.