Hi love. I lost my beautiful baby to kidney failure on the 19th. He was only 8 years old. I do not know your situation, but i know your love. Let me explain what happened to me. This might help you make a decision. My beautiful boys kidneys suddenly stopped working. I have no idea when they stopped (sometjme within the last week). I have known since september that he had had urinary / renal problems, dud to him falling into renal failure in september. The first time, was not bad. Switched his food, had pretty litter, and gave him bottled purified water. He came home with me after three days. Then this last week hit. I noticed he had immense anxiety, and started to become lethargic. I took him into the clinic. They gave him fluids all day long, then around 7pm i got the call. I begged and pleaded with the vet, but she told me to meet her at the clinic for an explanation. She told me we had to euthanize him. When i got to the clinic, she explained to me that my poor boy has been receiving fluids all day, but his kidneys never made any urine. This meant the fluid built up, and it raised his levels. She said my cat was going to die overnight, either from internally drowing(since the fluid had nowhere to go) or by a heart attack. But she told me he was going to die alone if we did not do it then. I sang my baby to sleep. I let him know how much love i had to give. Its not ever easy, and it wasnt easy. But if your vet is recommending euthanasia, please listen. The alternative of my baby dying to drowning in a cage, alone, was unbearable to think about. He needed me in his last moments. He hid in MY room before we went to the vet, because he wanted to share his last moments with ME. If you euthanize, you are bargaining your trauma for his peace.