What you're describing and the history of the symptoms, being that you feel it upon doing physical things, would lean toward something concerning your musculoskeletal makeup. If in doubt and are that uncomfortable, reach out to your doctor. And no, I don't believe real physical pain caused by real physical issues are anxiety related but, anxiety can and does amplify physical symptoms and hyper awareness of them (stress headache = brain tumor etc.). Add to that Dr. Google and a catastrophic, worst case outlook that HA causes and here you are.