What is fibromyalgia? It is a long-term condition that causes pain in many parts of the body, along with deep tiredness and poor sleep. The pain is real, but it does not come from damaged joints or muscles. It comes from a nervous system that has become more sensitive to pain signals.
If you have been told you have fibromyalgia, or you think you might, this guide walks through the basics in plain words. You will learn what is going on in the body, who tends to get it, and what actually helps.
What Is Fibromyalgia, Really?
Fibromyalgia is a chronic pain condition. “Chronic” means it lasts a long time, usually months to years. The main features are widespread pain, fatigue and sleep that does not leave you rested.
It is not an autoimmune disease, and it is not a type of arthritis. The American College of Rheumatology notes that it is not an inflammatory or autoimmune disease, and it does not damage joints, muscles or organs. That is why your X-rays and blood tests often come back normal, even when you hurt all over.
Normal test results do not mean the pain is “all in your head.” They mean the problem is in how pain is handled, not in the tissue itself.
The Pain System Turned Up Too High
Doctors now describe fibromyalgia pain as nociplastic pain. That is a mouthful, so here is the simple version. Most pain comes from an injury, like a cut or a sprain. Some pain comes from damaged nerves. Nociplastic pain is a third kind. The pain comes from changes in how the brain and spinal cord process signals, without an injury that explains it.
A related term you may hear is central sensitization. Think of it like a volume knob that is turned up too high. Your brain and spinal cord amplify signals, so a light touch, mild pressure or normal muscle use can feel painful.
This “turned up” system can also make you more sensitive to other things. Many people notice they are bothered more by bright lights, loud noise, strong smells or temperature changes.
Common Symptoms
Fibromyalgia is more than pain. Symptoms often include:
- Widespread pain and stiffness. Often described as aching, burning or throbbing. It may move around.
- Fatigue. A heavy, draining tiredness that rest does not fix.
- Unrefreshing sleep. You may sleep a full night and still wake up exhausted.
- Thinking and memory problems. Often called “fibro fog.” Trouble focusing, finding words or remembering.
- Headaches or migraines.
- Tingling or numbness in the hands and feet.
- Jaw or face pain, including TMJ problems.
- Digestive problems, such as bloating, constipation or irritable bowel syndrome.
- Mood changes, including anxiety and depression.
Symptoms often come and go. You may have stretches of better days and then a flare, when everything gets worse for a while.
Who Gets Fibromyalgia?
Anyone can develop fibromyalgia, including children. But some groups are more likely to have it. According to the CDC and NIAMS, risk is higher for:
- Women. It is more common in women than in men.
- Middle-aged adults. It most often shows up between ages 30 and 50, and it becomes more likely with age.
- People with a family history. It tends to run in families.
- People with other rheumatic conditions, such as lupus, rheumatoid arthritis or osteoarthritis.
- People with mood disorders or other long-term pain conditions.
The American College of Rheumatology estimates that about 2 to 4 percent of people have fibromyalgia. Millions of Americans live with it.
What Causes Fibromyalgia?
No one knows the exact cause yet. Researchers believe it is a mix of things rather than one single cause.
Here is what is known so far:
- Genes likely play a part. Because it runs in families, some people may be born with a nervous system that is more prone to becoming sensitized.
- The brain processes pain differently. Brain imaging studies have shown changes in how pain signals are handled.
- Certain events can set it off. The CDC lists triggers such as stressful or traumatic events, accidents, injuries, repeated strain on the body, and illnesses like viral infections.
For some people, symptoms seem to start after one clear event. For others, they build slowly over years with no obvious starting point. Both are common.
How Is It Diagnosed?
There is no single blood test or scan that proves fibromyalgia. Instead, a provider looks at your symptoms, your history and a physical exam. Doctors use criteria from the American College of Rheumatology, updated in 2016. These look at how many areas of the body hurt, how severe your other symptoms are, and how long they have lasted (at least three months).
Your provider will also order tests to rule out conditions that can look similar, such as thyroid problems or inflammatory arthritis. Fibromyalgia can also exist alongside other conditions, so having one diagnosis does not rule out the other.
Treatment Overview
There is no cure for fibromyalgia, but there are real ways to feel better. Most people do best with a combination of approaches rather than one single fix.
Movement
Exercise has the strongest evidence of any fibromyalgia treatment. That can sound hard to believe when moving hurts. The key is to start very low and build up slowly. Walking, water exercise, cycling, stretching and light strength work are good options. A physical therapist can help you find a safe starting point.
Sleep and daily habits
Better sleep can ease pain and fatigue. Helpful habits include a regular bedtime and wake time, a cool and dark bedroom, and less caffeine later in the day. Pacing your activity, so you do not overdo it on good days, also helps.
Talk therapy
Cognitive behavioral therapy (CBT) can help you cope with pain and change patterns that make symptoms worse. This does not mean your pain is imagined. It means your thoughts, stress and pain all affect each other.
Medicines
Four medicines are approved by the FDA specifically for fibromyalgia in the United States:
| Medicine | Year approved | Type |
|---|---|---|
| Pregabalin (Lyrica) | 2007 | Nerve pain medicine |
| Duloxetine (Cymbalta) | 2008 | Antidepressant (SNRI) |
| Milnacipran (Savella) | 2009 | Antidepressant (SNRI) |
| Cyclobenzaprine sublingual (Tonmya) | 2025 | Taken under the tongue at bedtime |
Doctors may also suggest other medicines “off-label,” which means they are used for fibromyalgia even though they are not officially approved for it. One example you may read about online is low-dose naltrexone (LDN). So far, it has only been tested in small studies, and a 2023 trial in women found it worked no better than a placebo.
Opioids are generally not recommended for fibromyalgia. Always talk with your provider before starting, stopping or changing any medicine.
What Is the Outlook?
Fibromyalgia is a long-term condition, but it does not damage your joints or organs, and it is not life-threatening. It does not get steadily worse the way some diseases do.
That said, it can have a big effect on daily life, work and mood. Symptoms can be unpredictable. Many people learn which habits and treatments help them most, and some find their symptoms ease over time. Finding the right mix can take patience and some trial and error with your care team.
Frequently Asked Questions
Is fibromyalgia a real disease?
Yes. Fibromyalgia is a recognized medical condition with diagnostic criteria from the American College of Rheumatology. Research shows real changes in how the nervous system processes pain.
Can fibromyalgia go away?
There is no cure right now. But symptoms can improve a great deal with treatment, and some people have long periods with milder symptoms.
Does fibromyalgia cause joint damage?
No. Fibromyalgia does not damage joints, muscles or organs. If you have joint swelling or damage, your provider should look for another cause, which can exist alongside fibromyalgia.
What kind of doctor treats fibromyalgia?
Many people are diagnosed and treated by a primary care provider. A rheumatologist may help confirm the diagnosis and rule out other conditions. Physical therapists, mental health professionals and sleep specialists can also be part of your team.
The Bottom Line
Fibromyalgia is a real, long-term condition where the nervous system amplifies pain, along with fatigue, poor sleep and thinking problems. It is not caused by damaged tissue, which is why tests often look normal. There is no cure, but gentle exercise, better sleep, talk therapy and medicines can help. Work with your care team to build a plan that fits your life.
Sources
- Fibromyalgia Symptoms, Causes, & Risk Factors (NIAMS)
- Fibromyalgia (CDC)
- Fibromyalgia (American College of Rheumatology)
- Fibromyalgia: What It Is, Symptoms & Treatment (Cleveland Clinic)
- Fibromyalgia – Diagnosis and treatment (Mayo Clinic)
- TONMYA Prescribing Information (FDA)
New from Anna Curran, RN
Fibromyalgia: A Nurse’s Guide to Less Pain, Better Sleep and More Good Days
A plain-language guide to medicines, pacing, sleep, gentle movement, flares, work and family life, with trackers and planners. Paperback, hardcover and Kindle.
This article is for general education only and is not medical advice. Talk with your own doctor or licensed provider before you start, stop or change any treatment. In an emergency, call 911. In crisis, call or text 988. See our medical disclaimer.