She knows when it's time to go to the vet and becomes unfindable (that grey color of hers makes her invisible even in plain sight and full light when she wants to). The sad thing is when she was a kitten she was always curious and happy to go the vet but she has been a bit sickly in the last couple of years (some sort of irritable bowel syndrome that seems to be resolved -*fingers crossed*) and trips to the vet have become a horrible stress on her (though I like that she's willing and capable of fighting) and we try to minimize those as much as possible.