This is Simon. Simon has cancer. We had a tumor removed from one of his boobs last year and at the time the vet said that it might already have metastasized, and that has proven to be true; the tumor came back and lately he's been coughing a lot, too.
There are options for treating cats with cancer, but in this case they aren't right for us (us being the combination of me, Noel, and Simon). Rather than put an elderly, skittish kitty through a lot of surgeries and treatment (which he hates more than anything) we are trying to keep him comfortable and letting the disease take its course. When it gets to be bad for him, we will have him put down.
He now has an enormous tumor. It's under his left front leg, and you can sort of see it bulging here. He seems mostly comfortable except the tumor seems to get in the way of his lounging. I may take him to the vet this weekend to get some pain pills, because he's starting to act a little achy which means he is a lot achy.
This is the last cat we get Ana. When Mikey died, we got her Simon because she was inconsolably lonely. But this time she will have to just Get Over It, because there is a limit to the number of cat graves I want to dig in the back yard in the next few years.