Fibromyalgia: symptoms and typical complaints
Widespread pain, exhaustion, unrefreshing sleep, and “fibro fog” – which symptoms belong to fibromyalgia and how a flare presents.
- Author
- Frederik MarquartFounder & CEO, Elara Health
- Editorial responsibility
- Elara HealthPatient-centered health information
- Last updated
- September 13, 2026
Short answer
The core symptom is widespread pain across several body regions for at least three months.
Almost always there is exhaustion, unrefreshing sleep, and concentration problems (“fibro fog”).
Symptoms often fluctuate and can intensify into a flare for periods of time.
Fibromyalgia rarely shows up through pain alone. Typical is a cluster of widespread pain, exhaustion, poor sleep, and cognitive problems that can fluctuate from day to day. Knowing this pattern helps to make sense of the symptoms.
Typical symptoms
widespread, shifting pain
exhaustion and waking up feeling unrefreshed
fibro fog: concentration and word-finding problems
accompanying symptoms such as IBS, headaches, weather sensitivity
Record symptoms and understand your values
Prepare for your appointment with a free symptom check, an explanation of WPI and SS, and a printable answer summary.
Widespread pain as the core symptom
At the center is pain that is not limited to one joint but occurs in several body regions – upper and lower, left and right. Many describe it as deep, burning, or pulling, with fluctuating intensity.
Characteristically, the pain is felt in many places at once and cannot be explained by a single injury.
Exhaustion, sleep, and fibro fog
Besides pain, most people report pronounced exhaustion and sleep that is not restorative – the feeling of waking up “unrefreshed” is very common.
In addition there are cognitive complaints known as “fibro fog”: concentration, memory, and word-finding problems that can be burdensome in daily life.
unrefreshing sleep, waking up exhausted
persistent physical and mental exhaustion
concentration and memory problems
increased sensitivity to stimuli
Accompanying symptoms and flares
Additional complaints are common: irritable bowel, headaches, tingling, cold sensitivity, or weather sensitivity. For many, they are part of the overall picture.
Symptoms are rarely constant. During a flare, pain and exhaustion intensify over hours to weeks, often triggered by stress, overexertion, infections, or lack of sleep.
More detail when you need it.
Medication and lab values can sit beside the rest of your history without crowding the pacing flow.
FAQ
What is a fibromyalgia flare?
A phase in which pain, exhaustion, and other symptoms clearly intensify. Flares can last hours to weeks and are often triggered by stress, overexertion, or lack of sleep.
What is fibro fog?
Fibro fog describes cognitive complaints in fibromyalgia: concentration, memory, and word-finding problems. They often relate to lack of sleep and pain.
Are exhaustion and sleep problems part of fibromyalgia?
Yes. Unrefreshing sleep and pronounced exhaustion are, alongside pain, among the central symptoms and also feed into the diagnostic criteria.
Are the old 18 tender points still relevant?
No longer central to diagnosis. The current ACR criteria assess widespread pain and symptom severity rather than palpating 18 tender points.
Guidelines and medical background
The linked guidelines and institutional resources explain the medical background. Editorial responsibility and any documented medical review are identified separately.
Editorial standards
- Medical background: 1 source
- Educational context – not a substitute for medical diagnosis
- Links to related knowledge, questionnaires, and methodology