Vet should have xrayed the ferret had it done with ferret last year found a mass in her stomach said it was cancer, gave her 24 hours, gave me little tins of food full of protein brought ferret inside handfeed every 4 hours gained weight slowly brought ferret back after week, weight ferret and looked shocked ferret was still alive vet hadn't got a clue, put ferret outside when it could feed normal that was that ferret flying it after 2 weeks, normal run of the mill vets haven't got a clue, hope your ferret makes it hand feed him kitten food all the best...