Fibromyalgia — chronic widespread pain

Fibromyalgia is a chronic condition causing widespread pain, profound fatigue, poor sleep, and cognitive difficulties — often called “fibro fog”. It affects an estimated 2 to 4% of adults in the UK — women more than men.

It is real, disabling, and not “all in the mind” — but it is not inflammatory like rheumatoid arthritis — joints and organs are not damaged by the disease itself.

Core symptoms

Widespread pain:

  • both sides of body
  • above and below waist
  • axial skeleton — neck, back, chest
  • persists ≥3 months
  • burning, aching, stabbing quality
  • allodynia — tenderness to light touch

Fatigue:

  • not relieved by rest
  • post-exertional worsening common

Sleep:

  • unrefreshing sleep — wake exhausted
  • alpha-delta sleep anomaly described in research

Cognitive:

  • poor concentration, word-finding difficulty, memory complaints

Associated (common):

Diagnosis — exclusion and pattern

No single test. GP assesses and orders:

  • FBC — exclude anaemia
  • TSH — exclude thyroid disease
  • CRP/ESR — exclude inflammatory arthritis
  • vitamin D if deficient risk
  • consider coeliac if bowel symptoms

2016 ACR criteria (simplified clinically): widespread pain index + symptom severity — GP or rheumatology applies.

Do not label prematurely — investigate red flags (weight loss, focal neurology, inflammatory markers high).

What fibromyalgia is not

  • Not joint inflammation — unlike RA
  • Not progressive organ damage
  • Not laziness or malingering
  • Not cured by single blood test or scan

Treatment — multimodal approach

Exercise — cornerstone

Graded activity — start low, increase slowly:

  • walking, swimming, cycling
  • strength training — improves function in trials
  • avoid boom-bust — crashing after overactivity

Physiotherapy referral helps pacing.

Psychological support

CBT, acceptance and commitment therapy (ACT) — improve coping and function — not “because it’s psychological” but because pain neuroscience involves brain processing.

Sleep hygiene

Regular schedule, limit caffeine/alcohol, CBT for insomnia — see insomnia.

Medicines (symptom relief — not cure)

MedicineRole
Amitriptyline (low dose)Pain, sleep
DuloxetinePain, mood
Pregabalin/gabapentinPain — NICE chronic pain guidance limits use — discuss risks
Tramadol/opioidsAvoid long term — poor benefit-harm ratio

No single drug works for everyone — trials often needed.

Self-management

  • Fibromyalgia Action UK — support groups
  • workplace adjustments — flexible hours
  • pain management programmes — NHS multidisciplinary

Overlap with other conditions

Many patients also have:

Treat holistically — not siloed.

Prognosis

Chronic but fluctuating — not life-shortening. Many improve function with consistent pacing and exercise — rarely “disappears completely.”

Avoid:

  • prolonged bed rest
  • chasing unproven expensive tests
  • doctor shopping for structural diagnosis missing

Fibromyalgia requires patience, multidisciplinary care, and activity pacing — validation and structured rehabilitation beat repeated scans showing nothing.

Common questions about fibromyalgia

What are the symptoms of fibromyalgia?
Widespread aching pain lasting 3+ months, severe fatigue, waking unrefreshed despite sleep, memory and concentration problems (fibro fog), headaches, irritable bowel symptoms, and sensitivity to touch — even light pressure hurts (allodynia). Symptoms fluctuate — good and bad days.
What causes fibromyalgia?
Unknown — central nervous system pain processing appears amplified — brain and spinal cord intensify pain signals. Triggers include physical trauma, surgery, infection, or emotional stress in some people. Not inflammatory arthritis — joints are not damaged.
Is there a test for fibromyalgia?
No definitive test — GP diagnoses after history, examination, and blood tests excluding other conditions (thyroid, inflammatory markers, vitamin D, anaemia). Tender points are less emphasised now — widespread pain and associated symptoms define diagnosis.
What helps fibromyalgia pain?
Paced graded exercise (walking, swimming, strength training started gently), CBT or ACT psychological therapy, sleep hygiene, and medicines — amitriptyline, duloxetine, pregabalin — for some people. Opioids generally not recommended long term.
Is fibromyalgia the same as chronic fatigue syndrome?
Overlapping conditions — both feature fatigue and pain. CFS/ME emphasises post-exertional malaise (crash after activity). Many people meet criteria for both — management overlaps with pacing and holistic support.

Sources

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