I have a seven-year-old cat who's been eating Royal Canin Urinary Dry Food for two years due to his urinary condition. Afterward, he got tired of it, and I experimented with various dry foods, which he liked for a week or so and then got tired of them. Then, I tried giving him canned food, which again he seemed to like for about a week, and then he seems to be tired of that now. I just don't know what to do. Has anyone else had a cat like this or am I a special case? Is this something I'll have to deal with from now on? I'm very frustrated and worried because I can't keep buying foods only to throw them out.