I got my shot in October 2010 and here it is July 23rd 2011 and I still have severe pain in my left arm from that flu shot. It comes and goes but most of the time I feel pain and have weakness in that arm, shoulder pain and neck pain as well. What can I do? Like everyone else, I did not mention to my doctor for fear of being considered a hypochondriac. When it was administered it really hurt me like no other shot but just brushed it off. I plan to see my doctor and also complain to my medical provider. For me, I will not be getting a flu shot any more. Thanks to all of you for sharing your stories. I will continue to research this matter and get back to all of you with any information that will give us relief from this pain. It just never goes away.