@Hockeyfan It is always good to rule out autoimmune diseases, hormonal imbalances (like hypo and hyper thyroidism), and vitamin deficiencies. Fibromyalgia has a strong co-morbidity of Chronic Fatigue Syndrome so some people experience fatigue worse than others. There are not a lot of great treatment options but some things I do suggest is tracking your nutrient intake to see what you may be lacking, tracking electrolytes and supplementing as necessary, if you have any sleep related issues try to treat them, amino acid supplements, and antioxidant supplements. I cannot even function without caffeine. As a very last resort you can try meds if they're willing. Stimulants are usually a very last resort due to dependency issues. But some people find SSRI or NDRI antidepressants to help. Let me know if you'd like any further details on anything. Also, make sure your treating physician is aware that 2 brain and spine MRIs are needed for a definitive MS diagnosis. Even so, my fatigue is far more debilitating than my pain. And I have significant pain as well. I was still pushing through college and work with pain. I have learned ways of managing my pain as much as one can, but fatigue is the main reason I can no longer hold down employment and no longer drive. I haven't done either in nearly 6 years now (Fibro and CFS dx nearly 11 years ago) and I'm only 32.

@Hockeyfan you are welcome. Also, might be worth a shot, you might want to try compression socks for your legs. Why? Because Ive had a light case of restless legs syndrome (it was worse last year, But luckily it was only a month or 2). Anyway, wearing compression knee-highs help me enough to get and stay asleep. Because i wear them to bed, i wear a size larger than normal. So it might only be 7 to 15 compression, but it still works.