My first Moderna vaccine in late 1/21 and I was soon suffering with terrific joint pain -- could hardly move. My primary doctor referred me to a rheumatologist after my blood tests for CRP and Westergren Sedimentation Rate came back with rates indicating very high inflammation. Diagnosis was PMR and I started on 40 mg prednisone. It's now 1.5 years later I'm down to 5 mg of prednisone.
These COVID vaccines should come with a warning label. Looks like there's a lot of evidence among us with PMR that it can be triggered by vaccines among those over 60.