My cat Mittens is almost 15 Years old and today she has been acting rather lethargic. She has been dealing with an overactive thyroid, so she normally wants to eat a lot. We took her to the vet last week when she got a little infection in her eye and he told us that she probably has an overactive thyroid. My family is not in the greatest financial status and my dad doesn't want to spend extra money on special food. Normally Mittens is hungry often but today she has barely eaten anything. She had a little pee accident earlier, and she hasnt moved much. She is moving very slowly when she does move. I'm worried, normally she is so lively but today.. Is it just because she is getting old, or is something wrong. We normally feed her friskies btw, and she only eats wet food