
Honestly, I would recommend getting a second opinion. Idk how you were diagnosed, but it is typically a diagnosis of exclusion. Meaning they should be testing you for a variety of different conditions that can mimic fibromyalgia before settling on that diagnosis. You may have already gone through all of that, which would make this irrelevant, but if you feel it might be something more, listen to yourself.
my tests were in the normal range but normal range is just a population avg, not optimal levels. i had iron deficiency and it was causing me debilitating fatigue, brain fog, and muscle pain. ferritin should be above 125 but normal range is usually above 20 or 30. anything under 100 is iron deficiency and can cause symptoms