Since this species does hibernate in the wild, it can be safe to say it is getting ready to hibernate. Quick question, is the toad WC? (Wild Caught) If so, it's probably done this at least once, so it's preparing to do it again. Now there are two things you can do, one is to try warming up his enclosure, and adding more light so its body clock shifts away from hibernation, or you can try letting it hibernate. I strongly recommend you to try the first option first, unless you're trying to breed it. It's very difficult for a first time owner to try to hibernate an animal, but if you decide to let it hibernate, stop feeding it and make sure it's pooping regularly, because if it goes into hibernation whilst food is still in its stomach, the food may rot, killing it. An article can be found here if you do decide to go down this path: http://www.lllreptile.com/articles/1...ian-brumation/