Hi guys. Thanks for your speedy responses. My e-mail box has been full to over-flowing with helpful people. Thanks to your responses, my vet has managed to diagnose what is wrong with Guy. As was pointed out by all those who wrote in, Guys symptoms seemed to indicate insulinoma. He was tested this morning, and he does indeed seem to have this. If there are any vets out there with suggestions on what my vet can do to help my baby, please e-mail me ASAP. She is calling people Nationwide to find someone who may know more about this, but New Zealand doesn't have too many ferret-knowledgable vets thus far. Any and all information on treatments for insulinoma will be appreciated. Thanks to all. Sam [Posted in FML issue 1871]