I don't know whether to put my Hermann tortoise in hibernation, I have only had him a few months, he was found wandering. Had him checked out at vets, he is healthy & chipped but not registered to anyone, so he is now , to me. He has slowed up with eating, have gradual!y stopped feeding him as I have read they must have an empty stomach but full bladder to go in hibernation??? How do you do that???