Bought my Trek Fx bike a few weeks ago. After the first week, I was complaining about hand and arm pain. I adjusted the seat fore and aft and the angle a little. I also purchased gloves. My hands and arms feel a lot better, but the weird thing is my left elbow(or the muscles around it, Im not sure) hurts like hell the next day when I go to extend my arm fully. I can feel it startimg to hurt during my ride. My LBS cant figure it out. I think my arms are to fully extended when riding. If I were to raise the handle bars I would have to get a new stem they said. Would that work?