I just put him down. He seemed very weak would eat a little and drinks lots of water . When he would see me he would just collapse in my arms and purr. He just loved to sit with me. But seemed a bit spacy and started to hear wheezing, fluid noises when he purred. I'm not trying to rationalize what I did I feel terrible. But my gut said do it. Was not going to wait till he could not breathe or vomit. Sure he may have been able to get a week more or so but thats probably it. DR said a week but i didn't listen to him his bun was 199 and creatinine was 8.0. wbc was high rbc very low hGB low hct low plus other results. i didn't go by them went by how the cat acted he just seemed to get weaker and more tired. I'll always love him and already miss him