Hi. Yes, I have both. I was diagnosed over 20 years ago with fibromyalgia while Tramadol was in the early stages of release and my doctor gave me samples. I was lucky because his mother had fibro and had found how well it worked for her pain. These days doctors aren't keen to prescribe it as it can be addictive. They have you try the SSRI and SNRIs first like Lyrica or Cymbalta. Both I hear are very good if you can tolerate them.
I have all-over pain and most if the pressure points where, when pressed feels like a bruise. I was diagnosed with PMR at the end of May this year. Unfortunately the Prednisone, though very helpful against PMR pain, doesn't touch the fibro pain.
I don't know my inflammatory markers and though I did have a labs done with PMR, I don't recall it done for the fibro.
Sorry not to be of more help but don't hesitate if you have any further questions..
I do have one for you. There is a board here regarding PMR being triggered by the Covid shots and an NIH Study that backs that up. Does your PMR align with any Covid shots?