I'm 61 years of age and got my flu jab about 6 weeks ago. Soon after I noticed pain in my shoulder. I am now having throbbing pains in my arm as well. This is to the degree that it is keeping me awake at night. Today it is really painful, so I decided to look in to what could be causing it. After reading so many similar complaints I am going to visit my G.P tomorrow.As I also suffer from other painful problems I could well be doing without this. I hope a remedy can be found which will help us all. Good luck.