Should I Put My Cat Down?

[-Skeme-]

She's pretty old and I think she's becoming senile. She's around 11 or so, I think. She meows incessantly for no apparent reason. She doesn't use her litter box anymore. It ends up on the floor, outside of the box, or on the carpet around the house.

I really don't want to do it, it seems disloyal, but I think I might have to. I remember our older cat had the same problem.. we found out he had leukemia and cat AIDS for quite some time. At the time, we couldn't afford to have him put to sleep.

She doesn't seem to be in much pain. She still purrs and crap, and loves when we pet her, but I can't help but remember our older cat's body breaking down and being in a constant state of pain. He started losing his fur, lost tons of weight, and became so weak that he couldn't move onto the furniture. [img]/images/graemlins/frown.gif[/img]

Anybody have anything they can add? Thanks.