I was told his Bun is 45 and Creatine is 598, they said he should be really ill, he suffers Shar Pei fever when stressed out, so I sat with him for 9 hours while he had fluid to cleanse his Kidneys, his Bun went down from 43 to 35, but a week later it has risen to 45, but his Creatine has come down to 598. My boy is still quite perky, and eating chicken fillet and rice. I have tried him on the Royal CKD food, but after 2 days he was not interested. He is also on 10mg Fortekor. He is not bringing his food up, and is still wanting to go for a walk.I have looked all over, and came across this help page, and would greatly appreciate any help available.