So one of my bigger boys Hannable got his winter coat and gained almost all of his winter weight in early october. We noticed this month that he was looking thinner, he's lost 7 ounces since december. He acts fine, actually he's been a REAL hellion here lately, he use to be pretty laid back but now he litterally climbs the walls He eats well, drinks fine, poops look good.. I just wonder if he's losing his winter weight already? This is my first year with my ferrets so I'm not sure at what times they gain/lose their weight. All my others who gained thick coats and weight for winter still have both! He was born in february of last year so he's almost a year old.