Good advice from garner, but I would ask, how much do you exercise the dog? Springers are hunting dogs, first and formost, and need quite a bit of good, strenuous exercise. I would recommend, based my experience with our own Springer, at least 30 minutes of good heartbeat raising walks a day. One hour is far better. I think you'll notice a difference in his/her demeanor. I even try leashing him during a bicycle ride to assure the dog gets somewhat winded...Best of luck!