nawh definatly not alone, my male (rescued) was in terrible condition, had no hair from his neck down. My unexperienced vet was insistant that it was adrenal and the only way to save kit was to operate right there and then. But the poor 6yr old male at that moment in time was dehydrated and severly malnourished and though the vet insisted on surgery that day also said in the state he was in only had a 20% survival chance.
so i refused, i thought id let a ferret vet take a look.
That vet tolld me to wait a few months, that the hairloss though most likely adrenal could have been due to the horible state he was in.
After waiting a few months all the fur grew back and the 6yr old mess has turned into a playfull 6yr old kitt.
Turns out it wasnt adreanal at all.
He still loses a rather large amount of fur during seasonal shedding which is still alittle out of balance due to the trauma but hes fine and its nothing to worry about.
So dont always take the first opinion!
Sorry for the length