He did have a sore back we got him checked...but he's good to go now!!!
he also had really bad worms and was lethargic...but both of those things are long gone now (they were part of the problem and it helped a little bit once they were gone) I ride with a back pad just in case and I usually massage his back before or after riding and when I groom I try to work into him like a massage...personally I think this problem is all about time b/c after a while the right lead was fixed too! Thanks for the advice!!!