I took a mandatory flu shot at work Oct. 19, 2009 on my left arm. I had chills and a fever of 102* along with left arm aching pain, and a bout of severe low back pain within the first 2 weeks after receiving the shot. All other symptoms have since dissipated except for the severe low back pain and a strange wobbliness in my legs. The low back pain is bad enough to where I could not move by myself for a week, and now cannot really sit or bend without a high degree of constant pain.