Can you give me any information that you have on this disease. The vet thinks that Faith might have it. He said the if she either continues to be lethargic, continues to loose weight or starts to drag her back half for me to bring her in for a fasting blood sugar. I am considering doing it any way. I have started giving her NutriCal to help her gain her weight back. She has lost more than 3 oz and is too skinny. I am worried because I believe I have heard that NutriCal isn't good for a ferret with low blood sugar. I will greatly appreciate any help you can give me. Phyllis and the four Wigglies, Faith, Hope, Charrity and Charlie Brown [Posted in FML issue 2343]