I'm so sorry to hear this. My Peeka had acute kidney failure, different, obviously from chronic renal failure. But when she stopped eating and then her eyes and inside of her ears became jaundiced, it was clear that her liver was shutting down, too. I hope that helps you any when it comes time to do what you know you have to. I didn't want my Peeka to suffer and I know you feel the same way about Mishi, bless him. Lots of prayer power going out to you both nonetheless.