I had a tetanus booster earlier this week, and I ve been reading that these are rare side effects, my left neck is swollen (but not lumpy), and my collarbone hurts like I bumped into something. Also, my left fingers have been getting jab-like pinpricks. Should I be worried about the swelling , and if it is due to the tetanus shot, how long, approximately, will it last? Thank you for your time! Rachael