You just described EXACTLY where I received my flu shot last October (too high) and EXACTLY the symptoms I experienced thereafter. I've posted before, but I'll post again...Find a chiropractor who does ART (Active Release Technique). They will make it go away. I was afraid I'd be debilitated for life! But , now, I have zero residual effects from the pain of that shot. We think the needle hit my bicep tendon, which would cause pain just like you described. I cannot sing enough praises for ART! I am certain that I would still be in immense pain today if it weren't for ART!
Best wishes for a healthy healing!
~ART lady :-)