I have had an aching upper left arm for a few weeks, as if I ve been punched hard in the bicep, which makes it difficult to write (I am left handed). This afternoon my whole body started aching and still does and, after resting, lying down, for the past 90 minutes, my BP is 180/90. I take medication for my BP and do not usually have any problems with it. It may just be a virus but combined with the severe ache in my bicep I am a little concerned.