OK, yall......I'm not a real big one on flu shots, but I'm not as young as I used to be. husband is a human resources manager, set up flu shots at his plant, free to employees and their spouses. OK, so I went and got one on Wed. afternoon. NOW, no kiddin', I can hardly lift my arm. It started hurting late Wed. and hasn't let up. It hurts so bad I could almost wear it in a sling. It's so painful, I can hardly type. Thank goodness I had it done in my left arm, or I'd be severely handicapped (I'm VERY right-handed). WHAT can I do to make it feel better? All I've done so far is take Tylenol and that's not helping much. What could have caused this kind of pain?