My cat is 14, almost 15, years old. She has been diagnosed with a thyroid condition for about 3 years. She eats a good amount and takes her medication yet she is very boney and does not gain weight. Also, she likes to lay on cold floors (it is summertime currently) and sometimes will lay on her water bowl. Also, she is starting to smell a little. We got a new kitten about two months ago but they are used to each other by now so I don't think that is the problem. Any idea why my cat is acting strange? Thanks