Chronic fatigue syndrome
Chronic fatigue syndrome (CFS) is severe and debilitating tiredness that is not relieved by rest or sleep. Symptoms can also include aching joints and muscles, loss of memory or concentration, gastric problems and disturbed sleep.
The exact cause of CFS is still unknown. Some studies suggest the condition is genetic meaning it is passed to you by other members of your family. Other theories suggest a viral infection, hormone imbalance, stress or depression or an accident or trauma may trigger CFS.
Since the symptoms of CFS are similar to many other conditions, it can be difficult to diagnose. Your GP may order tests to rule out these other conditions.
You may also be referred to a specialist consultant for further diagnosis and treatment.
Related tests and scans
Waiting for blood tests and results can be an anxious time. If you’ve been referred by a GP for a test and don’t want to worry or wait, Nuffield Health can help. Our national network of fully accredited laboratories delivers fast, reliable results at a competitive price – wherever you are in the UK.
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