I got my flu shoot last Saturday morning, and my arm is still sore almost to the point where it's numb. I have a knot around the injection point the size of a half dollar plus it's all black and blue like a bruise. I've never had this reaction to a flu shot before. It pains me to even make a fist with my left hand. I asked my wife is she was punching me in my left arm while I sleep. She of course smiled and said no, but man does this hurt.
