I had to have a tetanus booster to determaine if I had an immunity disorder. Now I have stiff and painful fingers on both of my hands. I broke my right arm at the wrist in December and I thought it would be stiff. However, my left hand is now giving me fits. Swelling and fingers stiff. I had the shot a month ago. Do you think this could be the problem? I have not seen my Doctor yet. Thank you for your time.