I have a five ferrets. One of them seems to have lost a lot of energy over the past six months. Most notably, several weeks ago it seemed like he could hardly walk. He would take a few staggering steps and then lie down and go to sleep. I took him to a great vet known for dealing with ferrets. He ran all of the blood tests and it showed nothing. He seems a little low on energy all of the time, but fine otherwise (except for that one incident where he could hardly walk). Now, today he was stumbling around again and trying to go to sleep. Even when I let him loose in rooms that he never get to play in, he wasn't interested. Any ideas? Jerry K. [Posted in FML issue 2508]