Bought my first bow a couple of weeks ago,a hoyt power max...currently set at 50lb and 27.5 draw. I shot a dozen or more arrows every day for a week sighting in and working on form...now my bow arm (left arm) is super sore right under my shoulder almost like I pulled something, not a little sore,I can't push too hard on things without it hurting like hell. I'm fairly active, what's going on here?