Where did he hibernate? Is it possible the temperature got too low? I know blind torts turn in circles. I have two blind torts, neither of these do it but they have been blind from birth. I think its something which occurs in sighted torts who then loose their sight for instance to "frosting". As its obviously something new to them and they are disorientated.
I suggest lots of hydration and an appointment with a tortoise vet asap
