CBD and THC are cannabis sourced moleculs. The use is authorised in some countries. Some associations tends to think that these are the future of fibromialgia treatments. What does the current and serious researchs actually says ?
There have been some studies on the sleep and pain symptoms in fibromyalgia patients, with nabilone and THC, as well as surveys to look at cannabis use and their self-reported effects in this patient group. There haven't been enough studies done to make a strong statement about cannabinoid effects in these patients. By heart, I am not aware of any study administering CBD in fibromyalgia patients. Some studies you could further look at include:
Fiz, J., Durán, M., Capellà, D., Carbonell, J., & Farré, M. (2011). Cannabis use in patients with Fibromyalgia: Effect on symptoms relief and health-related quality of life. PLoS ONE, 6(4), 3–7. https://doi.org/10.1371/journal.pone.0018440
Schley, M., Legler, A., Skopp, G., Schmelz, M., Konrad, C., & Rukwied, R. (2006). Delta‐9-THC based monotherapy in fibromyalgia patients on experimentally induced pain, axon reflex flare, and pain relief. Current Medical Research and Opinion, 22(7), 1269–1276. https://doi.org/10.1185/030079906X112651
Skrabek, R. Q., Galimova, L., Ethans, K., & Perry, D. (2008). Nabilone for the Treatment of Pain in Fibromyalgia. Journal of Pain, 9(2), 164–173. https://doi.org/10.1016/j.jpain.2007.09.002
Ware, M. A., Fitzcharles, M.-A., Joseph, L., & Shir, Y. (2010). The effects of nabilone on sleep in fibromyalgia: results of a randomized controlled trial. Anesthesia and Analgesia, 110(2), 604–610. https://doi.org/10.1213/ANE.0b013e3181c76f70
As the molecular mechanisms are the same in in vulvodynia and fibromyalgia, and the two often are co-morbid, this might be an answer:
https://www.ncbi.nlm.nih.gov/pubmed/31052404