His last bile test was in Aug. His original vets at Oklahoma State Univ. pulled him off the L/D diet after 3 weeks of post op. He has been on a normal diet since. My vet said we would re-check at our next visit..Which is next month. And I definately know that a diet of hamburgers is not healthy. I'm normally really good at figuring out what is wrong with my fur kids...But he has me baffled.