A curious thing happened with my 20 month old bitch recently. I bought her a small rubber squeaky toy--a dog house with a dog's head peeping out. Instead of trying to chew it to bits at usual, she started treating it like a puppy. She carried it everywhere, hid behind furniture with it, whimpered all the time, and got very anxious if we took it away. I did eventually take it away permanently, as she was getting quite stressed. She's been in heat twice, never had pups, and is not currently in heat. Any thoughts on this odd behaviour?
Thanks!