Pets can be stupid that way. Rather than dying quickly and gracefully, some of them have a tendency to stay on and find ever newer ways to worsen.
We have a cat who's 19 years old - I was in elementary school when we brought him home. He sleeps 23 hours a day now which I suppose can be chalked up to his cathood, but he's also stone deaf and he feels like a furry bag of bones. Worst of all, he has a wound on his nose that won't heal - he has, over the course of 2 years, scratched his nose off and now he has a huge gaping hole where his little pink nose used to be.
This is a few years ago before he lost his hearing and the weight and scratched his nose off.
My thoughts are with you.
TOTD: I'm a shoulder to mid-back man - I guess that's 'in-between'.