This is a very good question. I'll tell you my story below. Here's the official line. Polymyalgia rheumatica (PMR) manifests as a bone/muscle disease. Usual symptoms are stiffness and pain in shoulders and hips that is worst in the morning and doesn't subside for at least half an hour. Other joints can be involved but shoulders … Continue reading How do you know if you’ve got polymyalgia rheumatica?