Discussion: Fibromyalgia is manifested through various symptoms caused by chronic inflammations that affect multiple organs and systems.

Only four groups of diseases reflect long-term immune failure: Allergies, Chronic inflammatory diseases, Cancer, and Autoimmune diseases. Fibromyalgia is not an autoimmune disease and certainly not an allergy or Cancer. And so, it must be a chronic inflammatory disease. The main difficulty in understanding Fibromyalgia is probably due to the diversity of symptoms and organs/systems involved. (You can find a detailed explanation in the article at the attached link)

Link: Recovery from Fibromyalgia and CFS by Self-Healing Functional Medicine.
https://www.sf-healing.com/page/124 (Copy & Pate)