@merpreb - My experience with PMR when it's active is that the pain is always there unless I'm taking prednisone to control it. Then as I'm tapering, if I go too fast, the pain returns with different levels of intensity. The two big things that I believe help keep my PMR at bay are diet and exercise - not the cardio type but the just keep moving stuff, walking, stretching, etc.. PMR diagnosis usually involves Erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) blood tests to check the levels of inflammation in your body but they are just pointing to the possibility of PMR not a diagnosis if the levels are high. A physical exam by a rheumatologist is usually needed to confirm.

I've mostly focused on reducing or eliminating processed meats, sugar, fast food, and fried foods. Here is a good article on Medical News Today that offers some suggestions -- What to eat if you have polymyalgia rheumatica: https://www.medicalnewstoday.com/articles/321683