SHIPPENSBURG — The pain shooting from her right knee seemed to be telling Nalasjia Harris-Johnson her string of state medals was pretty much over. Her incredible will wouldn’t listen to it. Not without one more honor to add to her illustrious high school collection. Harris-Johnson overcame an aching meniscus injury suffered at states to win her fourth PIAA medal in as many years Saturday, finishing in eighth place in the girls Class 2A 100-meter dash during the Pennsylvania Track and Field Championships at Shippensburg University’s chilly and rain-spattered Seth Grove Stadium. “I was shocked,” the speedy Meyers senior said.