Fibromyalgia is a chronic condition that causes widespread pain, deep fatigue, unrefreshing sleep, and difficulty with memory and concentration. While it doesn’t damage the joints, muscles, or organs, it can seriously disrupt daily life.
No single cause has been identified, but researchers believe it develops when the nervous system amplifies pain signals. Genetics, physical or emotional stress, infections, and other medical conditions all appear to contribute.
If you’ve been living with pain that doesn’t have a clear explanation, you’re not alone, and you’re not imagining it. Here’s what rheumatologists know about fibromyalgia and where it comes from.
What is Fibromyalgia?
Fibromyalgia is a long-term pain disorder that affects how the brain and spinal cord process pain. As many as 5 million people in the United States currently suffer from fibromyalgia.
Unlike arthritis, fibromyalgia doesn’t cause visible swelling or joint damage. Because it doesn’t show up on standard X-rays or blood tests, it often goes unrecognized for years.
What are the Most Common Symptoms?
Fibromyalgia symptoms vary from person to person and often fluctuate, but the most common include:
- Widespread pain – aching, burning, or stiffness on both sides of the body, above and below the waist
- Fatigue – exhaustion that persists even after a full night in bed
- Sleep problems – trouble falling or staying asleep, or waking unrefreshed
- “Fibro fog” – trouble focusing, remembering, or finding words
- Headaches – including migraines and tension headaches
- Digestive issues – such as irritable bowel symptoms
- Sensitivity – to light, noise, temperature, or touch
- Mood changes – including anxiety and low mood
What Causes Fibromyalgia?
Unfortunately, the exact cause of fibromyalgia isn’t fully understood. The leading explanation is central sensitization. In this process, the brain and spinal cord become overly responsive to pain signals. Sensations that most people barely notice can feel painful, and painful sensations feel more intense.
Several factors are thought to contribute to this heightened sensitivity.
Genetics
Fibromyalgia often runs in families. Certain genes that influence how the body handles pain and stress may make some people more susceptible.
Physical Trauma
A car accident, surgery, or significant injury can sometimes trigger the onset of symptoms.
Emotional Stress
Prolonged or severe stress, including traumatic life events, is associated with the development of fibromyalgia in some people.
Infections
Certain viral and bacterial illnesses have been linked to the start of symptoms in some patients.
Chemical Imbalances
Studies suggest that people with fibromyalgia may have altered levels of brain chemicals involved in pain signaling, such as serotonin, dopamine, and norepinephrine.
Sleep Disruption
Poor sleep can both worsen fibromyalgia and increase pain sensitivity, creating a difficult cycle.
In most cases, there is no one, clear trigger. Rather, a combination of factors contribute to fibromyalgia.
Who is Most at Risk for Developing Fibromyalgia?
Anyone can develop fibromyalgia, but certain factors seem to raise the likelihood:
- Women are diagnosed more often than men
- Symptoms most commonly appear in early to middle adulthood
- Having a relative with fibromyalgia increases risk
- Having another condition like rheumatoid arthritis, lupus, and osteoarthritis is associated with a higher chance of developing fibromyalgia
How is Fibromyalgia Diagnosed?
There is no single blood test or scan that confirms fibromyalgia. In addition, because the symptoms are so varied and can come and go, diagnosis is complicated. However, seeing a rheumatologist is an important first step.
A rheumatologist diagnoses fibromyalgia by:
- Reviewing your symptoms and medical history
- Confirming that widespread pain and related symptoms have lasted at least three months
- Performing a physical exam
- Ordering tests to rule out conditions that can look similar, such as rheumatoid arthritis, lupus, thyroid disorders, and vitamin deficiencies
Ruling out other conditions is a key part of the process, and rheumatologists are specially trained to do it.
Can Fibromyalgia Be Treated?
There is currently no cure, but symptoms can be managed effectively. Your rheumatologist will personalize a treatment plan that may include:
- Medications – the FDA has approved duloxetine, milnacipran, and pregabalin for fibromyalgia, and other options may be considered
- Regular low-impact exercise – walking, swimming, and stretching can reduce pain over time
- Cognitive behavioral therapy – helps people manage pain and stress
- Sleep improvement – consistent routines and treatment of sleep disorders
- Stress management – relaxation techniques, mindfulness, and pacing activities
Many patients find that a combination of approaches works best.
When Should You See a Rheumatologist?
Consider scheduling an appointment if you have:
- Pain that has lasted more than three months without a clear cause
- Ongoing fatigue that interferes with work or daily activities
- Pain accompanied by joint swelling, rashes, or fever
- Symptoms that haven’t improved with over-the-counter treatments
Living with fibromyalgia can feel isolating, especially when the cause isn’t obvious. At Advanced Rheumatology of Houston, we find that many people with fibromyalgia struggle to be taken seriously. Our team takes the time to listen, rule out other conditions, and build a treatment plan that fits your life. If you’re struggling with unexplained pain or fatigue, contact us today to schedule an appointment. An accurate diagnosis is the first step toward relief, and the sooner it happens, the sooner you can start feeling better.

FAQs
Q: Is fibromyalgia hereditary?
A: Fibromyalgia isn’t directly inherited the way some conditions are, but genetics play a role. It often runs in families, and people with a close relative who has fibromyalgia are more likely to develop it themselves. Researchers believe certain genes affect how the nervous system processes pain and responds to stress, which may make some people more susceptible. Genes alone don’t determine who gets fibromyalgia, though. A trigger such as an injury, infection, or prolonged stress is usually involved as well.
Q: Why is fibromyalgia referred to as an invisible disease?
A: Fibromyalgia is called an invisible disease because its symptoms, including pain, fatigue, and brain fog, can’t be seen from the outside. It doesn’t cause swelling, redness, or joint deformity, and it doesn’t appear on X-rays, MRIs, or standard blood tests. Many people with fibromyalgia look healthy even on their worst days. Unfortunately, this disconnect can lead friends, coworkers, and even some healthcare providers to underestimate how much they are struggling. A rheumatologist can diagnose fibromyalgia through a careful evaluation of symptoms and by ruling out other conditions. Getting a diagnosis often brings validation as well as a path to treatment.


