Re: HELP!! change of behavior..WORRIED DAD
Quilling is a definite possibility at that age. Just keep an eye on the food and water intake and don't stop handling him, even though he's extra grumpy.
Hilde is currently quilling and she has her good days and her bad days. I would just continue your normal routine and if it is just quilling, it should pass soon and he should be back to his normal self.
He is GORGEOUS, by the way.