I had the whooping cough vaccine 9 days ago and for the last 5 days I've been in absolute agony with my arm. I can't hardly move it and been struggling with day to day activities. I had the vaccine in my left arm as I'm a righty but it hurts me to use my right arm. Been to the drs and they said its nothing to do with the vaccine and ive creeked my neck and sent me to physio. The main pain in my arm is at the injection sight and it shoots pain all the way up to my neck and all the way down to my elbow. Is this normal or should I be concerned?