New here, and really sorry about your baby. I am just now starting the kidney issues with mine, he's 12. He's on K/d diet and actually loves it, which is weird. And now the vet wants him on BP meds, I guess it's high. I don't have a clue what to do or where to go. I will check the link posted in this thread.
This is a tough thing to deal with. I'm glad your baby is doing better. Hang in there.