The second of these references I find especially interesting. Compared to descriptions from others here my case seems to be mild. Perhaps it resulted from a trigger. And perhaps that trigger might have been COVID-19. Just today I read that a prime symptom of the Omicron strains is myalgia (I had never heard that before), and the Zoe app suggests that the musculoskeletal manifestation, when it is present, is severe on shoulders and legs and lasts 2-3 days. Five weeks ago I had a severe, debilitating pain and stiffness in my arms and pelvic area. It went away 3 days later. Not having heard that this could be a sign of COVID (I had no other symptoms, and was not aware of being exposed), I didn't take a test. A week after that, I developed shoulder pain that my excellent internist diagnosed as PMR, upon seeing an elevated CRP reading. I have been on 20 mg prednisone since and the pain is under control (1 out of 10). I have no doubt that the doctor was right about PMR. What I am wondering is whether or not this PMR is different from any other kind, since it could perhaps (who knows?) be subsumed under "post-covid syndrome." Should it be treated the same way? I read that prednisone is contraindicated (in UK) in some myalgia. It's too early for studies about this, but I'm curious to know if anyone else has had the experience of short-duration heavy body pain followed in a week or so by PMR.