I find it unbelievable that only 21 cases of polymyalgia rheumatica are on the record as having been an adverse effect of the Covid vaccine. Most likely, rheumatologists and doctors have not made the connection or reported it. When Covid first appeared and vaccines were rolled out fast, discussion about the downsides of the vaccine was discouraged. "Safe and effective" was the mantra. They didn't want to scare people away from vaccination because it was essential to reduce the number of Covid deaths.