It's been a couple of weeks, but Willie (and Rosie) strip tested negative for Fanconi, which is good news! But Willie continues to drink more water than I think he should. So far, he has had three tests that indicate something with the liver (bile acids elevated). His last test was a fasting test. He was also tested for UTI and it was negative.
The vet suggested that we put him on special liver diet food, which is easy enough. Right now Willie is eating high protein food, and the liver food is lower protein. He said we could also do a sonogram and a biopsy of the liver. He's not a vet whose prone to invasive procedures and would probably suggest that we only do the biopsy if we can't figure out what's up. He gave me all the test results so that I could take them to my Chinese vet (who saved a cat of mine with liver problems) which is probably a good next step.
Has anyone ever encountered something like this? Any suggestions would be appreciated.