We just took our 3 year old cat Blue to the vet, she has lost a lot weight in the past year she went from 7lbs to 5.5lbs. The vet took a urine sample thinking it may be diabetes, which is isn't. While conduction the test he noticed a very high protein content in her urine. We are home now and won't know anything until tomorrow. He seems to think she may have PKD since she appears to have some Persian or Himalayan in her, does anyone know anything about this disease, or has anyone else had a cat with high protein in the urine and it turned out to be something else. Any information would be really appreciated, we are very worried about Blue.