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Ankylosing spondylitis (AS) is a type of chronic (long-term) arthritis that affects parts of the spine, including bones, muscles and ligaments.
Our Health A-Z contains more information on Ankylosing spondylitis.
If you are worried about this condition you can try our free AI Symptom Checker here.
Chronic fatigue syndrome (CFS) causes persistent fatigue (exhaustion) that affects everyday life and doesn't go away with sleep or rest.
Our Health A-Z contains more information on Chronic fatigue syndrome.
Fibromyalgia, also called fibromyalgia syndrome, is a long-term condition which causes pain all over the body.
Our Health A-Z contains more information on Fibromyalgia.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.