I came home from work the other night to find my 13 1/2 year old cat Finster breathing very heavy and through his mouth. I knew right away something was wrong, but it was too late to bring him to the vet. I considered taking him to the emergency vet clinic, but to was a 25 minute car ride, and he freaks out whenever I put him in the car or the cat carrier, and I didn't want to stress him out any further. I decided to wait until morning, as my local vet is just around the corner. He wouldn't eat at all that night, but he did drink some milk, which I gave him twice. The next morning his breathing was pretty much the same and he seemed a bit weaker, and he was crouched down on all fours under the star is. I took him out and he was still very alert and even sat by the open window to look outside. He would't eat anything however or drink any milk. I called the vet and took him in first thing. I couldn't get him in the carrier, so I out him in the car and drove over. He was very stressed out, and the ride only lasted 2 minutes - literally. In the parking lot I had to force him in the carrier in order to bring him inside. Once inside he was foaming at the mouth and breathing very hard. They took him into the back and out him into the oxygen cage, but I guess it was too late. Approximately 10 minutes later the vet came out and told me he had died. She said that after a few minutes of oxygen he wasn't responding and his lips and tongue were turning blue. She said they took him out and tried to intubate him and he went into cardiac arrest. She said they tired to get his heart going again but couldn't. Today I am just trying to make sense of all this and figure out what happened. Although there were no real outward signs of anything being wrong before this, he did drop she weight about a year ago, after we moved into our new home. I just chalked it up to the stress of the move, as he did seem to adjust after that. He also used to love to go outside, but wasn't really looking to go out after that. A few months ago I noticed that one of my cats (I have 5 others) was peeing in several places throughout the first floor, where the cats live. It was hard to tell which one, and I though it might have been one of the other cats who has a history of urinary tract infections. Now I am wondering if it was Finster. I did some research on the internet and read that cats who have a bad odor on their breath and their body are experiencing signs of kidney failure. Finster had both of these for the past few months, and so now I am wondering if that was his underlying problem. I would appreciate any thoughts anyone might have as to what exactly happened to my beloved cat, as I am feeling confused and guilty about what happened, and wondering if I should have just left him at home, as it seems like the trip to the vet caused his death. Thank you.