When did my PMR begin? Perhaps a bigger question is when did PMR become so wide spread? Are more people being diagnosed today? Are more people being diagnosed after the 'mRNA Covid booster' than before the Covid era? When did the 'Mayo Connect' blog start their never ending dedicated PMR postings? Is PMR a newer diagnosis of a type of arthritis. It seems there are a lot of people were scratching their heads when they were diagnosed with PMR. "I have what?". That was my reaction.