Fibromyalgia pain
Pain is the defining feature of fibromyalgia. It is what distinguishes the condition from conditions that share some of its other features — such as ME/CFS, which is defined by post-exertional malaise rather than pain.
Fibromyalgia pain is widespread, often unpredictable, and usually present at some level every day. It is not the pain of a specific injury or a single joint. It moves, it varies in intensity, and it tends to involve several parts of the body at once.
What fibromyalgia pain feels like
No two people describe fibromyalgia pain in exactly the same way, but certain patterns come up repeatedly:
Widespread. Pain that affects multiple areas — often the neck, shoulders, back, hips, and limbs — rather than staying in one place.
Slow to settle. Pain that lingers longer than it ‘should’ — a stubbed toe or small knock may remain painful for hours or days.
Moving. Pain that shifts location from day to day. Some areas hurt one day and others the next.
Mixed in quality. Aching, burning, stabbing, throbbing, and sharp pains can all appear in the same person, sometimes on the same day.
Amplified. Ordinary touch, pressure, or temperature can register as painful. A hug, a waistband, or a cool draught can trigger discomfort that would not affect most people.
Worse after rest in one position. Stiffness and pain often peak first thing in the morning or after sitting still for long periods.
Why fibromyalgia causes pain
The exact mechanism is not yet fully understood. Research suggests that fibromyalgia involves changes in how the central nervous system — the brain and spinal cord — processes pain signals. Ordinary sensory input that should not register as painful is amplified, while the systems that normally dampen pain signals do not work as effectively.
Researchers are also investigating other contributing factors, including:
- Small fibre neuropathy. Changes to the small nerve fibres in the skin, found in a substantial proportion of people with fibromyalgia.
- Autoimmune involvement. Research suggests that antibodies may play a role in generating fibromyalgia pain. This is promising but not yet settled — see our fibromyalgia research page for more.
- Altered pain regulation. Differences in the chemicals that control pain signalling in the brain and spinal cord.
Fibromyalgia pain is not caused by damage to the joints, muscles, or tissues. Standard scans and blood tests usually come back normal. That does not mean the pain is not real — it means the source is in how the nervous system processes pain, not in visible injury.
Common pain triggers
Pain levels in fibromyalgia rarely stay constant. Several factors tend to make it worse:
- Overexertion. Physical activity beyond your tolerance, especially repeated over several days.
- Poor sleep. A run of disrupted nights commonly worsens pain.
- Stress. Emotional stress and intense positive excitement can both raise pain levels.
- Weather changes. Drops in barometric pressure, cold damp conditions, and sudden temperature shifts are widely reported triggers.
- Staying in one position. Prolonged sitting, standing, or lying still can leave pain and stiffness worse when you move again.
- Infection. Viral or bacterial illness often raises baseline pain for days or weeks.
- Hormonal changes. Menstrual cycles, perimenopause, and menopause affect pain levels for many people.
Identifying your personal triggers takes time. Pattern-spotting usually requires several weeks of consistent tracking.
What helps with fibromyalgia pain
There is no single approach that reliably eases fibromyalgia pain for everyone. Most effective pain management combines several strategies rather than depending on any one.
- Heat. Warm baths, heat pads, heated blankets, and hot water bottles are among the most widely used tools for daily pain.
- Gentle movement within tolerance. Short walks, hydrotherapy, or gentle stretching help some people reduce pain over time. Movement that triggers a flare is not useful — stop if it makes things worse.
- Pacing. Breaking tasks into short intervals and building rest into your day reduces the overexertion that tips pain into a flare.
- Medication. Several medications are commonly used for fibromyalgia pain, including low-dose antidepressants and some anticonvulsants. Standard over-the-counter painkillers often have limited effect. Discuss options with your GP.
- TENS machines. Transcutaneous electrical nerve stimulation units provide relief for some people with localised pain. They are available without prescription.
- Environmental adjustments. Warm layers, soft fabrics, supportive seating, and reducing prolonged static positions all lower the background pain load.
For more detail on pain management strategies, see our managing fibromyalgia guide.
Pain that needs medical attention
Fibromyalgia pain is, by its nature, widespread and variable. But not every new or worsening pain should be assumed to be part of the condition.
Contact your GP if you experience:
- A sudden, severe pain that is new or significantly different from your usual pattern
- Pain localised to a specific area that does not fit your fibromyalgia picture
- Pain with new symptoms — fever, swelling, visible redness, numbness, or loss of function
- Pain that is no longer responding to approaches that normally help
Fibromyalgia does not protect against other conditions developing. New or unusual pain deserves to be checked, not dismissed as ‘just the fibromyalgia’.
A note on language
Pain in fibromyalgia is sometimes referred to using clinical terms:
- Nociplastic pain — pain that arises from altered nervous system processing rather than tissue damage. Fibromyalgia is the most recognised example.
- Central sensitisation — the process by which the central nervous system becomes more responsive to pain signals over time.
These terms describe the same phenomenon most people with fibromyalgia simply call pain. Knowing the clinical terms can help when reading research, speaking with specialists, or navigating appointments.