We have a three year old black lab named Remington. About three weeks ago he started exhibiting a pedal reflex while standing. It seems to be getting more prolific. If he is standing and you scratch his back he'll start pedaling with his back foot. He doesn'thhave to be scratched to initiate it. He'll be just standing there and his hind leg will start. He is also chewing/licking at the base of his tail. I've read about Syringomyelia but he doesn't have any of the other symptoms. And I haven't seen anything where it is prevalent in labs. I have to say I'm getting a little concerned. Remington never really shook his leg when being scratched on the belly. Could this be a stress response to something? Any suggestions or insight? Thanks in advance.