Fibromyalgia: Widespread Pain and the Role of Central Sensitization

Fibromyalgia is a chronic condition characterized by widespread musculoskeletal pain accompanied by fatigue, sleep disturbances, memory difficulties, and mood issues. Researchers believe fibromyalgia amplifies painful sensations by affecting the way the brain and spinal cord process pain and non-pain signals — a process called central sensitization. It affects approximately 2-4% of the population and is more common in women than men.

The primary symptom is widespread pain that has persisted for at least three months, affecting both sides of the body and both above and below the waist. The pain is often described as a constant dull ache. Fatigue is nearly universal and often severe, interfering with daily activities. Many patients also experience sleep disorders, including waking unrefreshed, and cognitive difficulties often referred to as "fibro fog" — difficulty concentrating, paying attention, and retaining information. Other common symptoms include headaches, irritable bowel syndrome, and heightened sensitivity to light, noise, and temperature.

Dr. Shree Narayan Yadav — consultant physician & joint and autoimmune disease specialist at Kathmandu Neurology Clinic & Cognitive Center provides evidence-based evaluation for fibromyalgia.

Diagnosis of fibromyalgia is clinical and based on symptom criteria. There is no single laboratory test or imaging study that confirms the condition. Widespread pain index (WPI) and symptom severity scale (SSS) scoring systems help guide diagnosis. Management is multimodal: regular physical activity (starting gradually and building up), cognitive behavioral therapy, sleep hygiene optimization, and medications such as pregabalin, duloxetine, or amitriptyline may be considered. A supportive patient-clinician relationship and education about the condition are foundational to effective management.

This article is educational and does not replace individual medical advice.