What condition is fibromyalgia?

I have fibromyalgia. It is a differential diagnosis, typically only diagnosed after all other avenues have been explored. It took 5 years of seeing many different types of specialists for me to ultimately be diagnosed with fibromyalgia.
My opinion is that, yes, some people with fibromyalgia could qualify for disability. I live in the United States so I cannot speak for other countries. In the United States, it would depend much upon the severity, quality of life, whether you are able to engage in substantial gainful activity (work), if you are under a doctor's care, and have a detailed medical history with your doctors regarding your symptoms. Just a diagnosis usually won't do. I cannot emphasize enough the importance of having medical documentation. This is just my own interpretation of my reading of the Social Security administration's list of impairments.
If you have any questions, feel free to reach out.

Hello,

What is Fibromyalgia?
Harvard Health Publishing
People with fibromyalgia have widespread pain, aches, and stiffness in muscles and joints throughout the body, along with unusual tiredness. There is no known cause of fibromyalgia. In addition, doctors can't find any other explanation for the symptoms. Blood tests, x-rays, and other tests usually are normal in people with fibromyalgia.

Fibromyalgia is a controversial illness. Some physicians don't believe that it's a medical illness but think it may be a reflection of psychological distress or stress. However, there's no proof of a psychological cause either. Until we have a better understanding of the disorder, it's likely to remain controversial.

It may be that fibromyalgia has more than one cause. Some researchers have suggested that it's related to abnormalities in a non-dream part of the sleep cycle or to low levels of serotonin, a brain chemical that regulates sleep and pain perception. Other theories have linked fibromyalgia to alterations in the threshold at which a person experiences pain. Still others have cited physical or psychological trauma, blood-flow abnormalities in the muscles, viral infections, or other infections as possible triggers of fibromyalgia.

Fibromyalgia affects an estimated 3.4% of women and 0.5% of men in the United States, or 3 million to 6 million Americans. It most commonly affects women of childbearing age or older. In fact, some estimates suggest that more than 7% of women in their 70s have fibromyalgia. Many people with fibromyalgia also have psychiatric problems such as depression, anxiety, or eating disorders, although the relationship between fibromyalgia and mental health disorders remains unclear.

Source and more information:
https://www.drugs.com/health-guide/fibromyalgia.html

Regards, masso