Fibromyalgia symptoms

Fibromyalgia is a chronic pain condition affecting around 1 in 20 adults in the UK. It's not arthritis but is often managed alongside it and is included here because of how often the two coexist.

Common symptoms of fibromyalgia

  • Widespread pain lasting more than three months
  • Persistent fatigue, even after sleep
  • Cognitive difficulties — often called 'fibro fog'
  • Sleep that doesn't feel restorative
  • Heightened sensitivity to touch, light, sound, or temperature
  • Irritable bowel symptoms, headaches, and mood changes

When to see your GP

See your GP if you have widespread pain and fatigue lasting more than three months. Diagnosis is clinical and your GP can rule out other conditions and refer for support.

This is general information, not a substitute for personalised medical advice.

Frequently asked questions

What are the first signs of fibromyalgia?

The earliest signs of fibromyalgia often include joint pain, stiffness — particularly in the morning or after rest — and reduced flexibility in the affected area. Symptoms typically develop gradually, so keep a short symptom diary and speak to your GP if pain persists for more than a few weeks.

How is fibromyalgia diagnosed in the UK?

In the UK, GPs diagnose fibromyalgia from your symptoms, a clinical examination, and — where appropriate — blood tests, X-rays, ultrasound or MRI. For inflammatory types, your GP may refer you to UK healthcare rheumatology for specialist review under NICE guidance.

Can fm symptoms come and go?

Yes. Many people with fm experience flares — periods of worse pain, swelling and stiffness — followed by quieter spells. Tracking your flares helps you and your GP spot triggers and adjust treatment.

When should I see a GP about fibromyalgia symptoms?

Book a GP appointment if joint pain has lasted more than a few weeks, is interfering with sleep or daily life, or is accompanied by swelling, warmth, locking or unexplained fatigue. Early assessment leads to better long-term outcomes.

Is fibromyalgia the same as general arthritis pain?

No — there are over 100 forms of arthritis, and fibromyalgia has its own pattern of symptoms, affected joints and treatment pathway. Getting the right diagnosis matters because the most effective treatments differ between conditions.