Sam -
I'm so sorry to hear of your loss and I hope you are able to find an
answer soon.
Unfortunately, with no noticeable symptoms there are too many
possibilities to hazard a good guess. I would suggest you arrange for an
autopsy, especially if your ferret was younger, to see what happenned.
Deepest condolences,
Lorraine
& Al the sock warrior
[Posted in FML issue 4197]