Lately it's been hard to turn my horse left. Because I do dressage we only use our wrists to turn the horse. My horse has a very soft mouth but it's beginning to feel hard on the left side. We have seen the dentist and the chiro. I have tried to put my left shoulder back and turn my hips but it's still hard. Even when I lounge him he pulls on his left side. When I ride he also has his head bent. Please help, thanks