Our cat passed away today. He was fine when we got home. He greets us at the back door. Maggie took him upstairs with her. When he was in the hallway, he lost the use of his back legs. The doctor thought that he might have a blood clot. Our kitty was also breathing heavy even with the oxygen. They thought at the animal hospital that if we took him to other doctors, specialists, he might have only one or two weeks extra to live. Maggie went with me to the hospital. She and I decided to have our kitty put to sleep. It would take him out of his pain. We think that our kitty was about seven years old.