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  • Chronic Fatigue Syndrome (CFS)  Clinically evaluated, unexplained, persistent or relapsing chronic fatigue that is of new or definite onset (has not been lifelong); is not the result of ongoing exertion; is not substantially alleviated by rest; and results in substantial reduction in previous levels of occupational, educational, social, or personal activities; and the concurrent occurrence of four or more of the following symptoms, all of which must have persisted or recurred during six or more consecutive months of illness and must not have predated the fatigue: self-reported impairment in short-term memory or concentration severe enough to cause substantial reduction in previous levels of occupational, educational, social, or personal activities; sore throat; tender cervical or axillary lymph nodes muscle pain, multi-joint pain without joint swelling or redness; headaches of a new type, pattern or severity; unrefreshing sleep; and post-external malaise lasting more than 24 hours.
    (National Institute of Allergy and Infectious Diseases CFS fact sheets and brochures)
    (National Center for Infectious Diseases CFS glossary)
  • Fibromyalgia (FM) Sometimes called fibrositis, Fibromyalgia is a chronic disorder that causes pain and stiffness throughout the tissues that support and move the bones and joints. Pain and localized tender points occur in the muscles, particularly those that support the neck, spine, shoulders and hips. Diagnosis of Fibromyalgia involves widespread pain lasting more than three months, tenderness in at least 11 of 18 tender point sites, fatigue and sleep disturbances.
    (National Institute of Arthritis and Musculoskeletal and Skin Diseases Web site)
    (National Institute of Arthritis and Musculoskeletal and Skin Diseases questions and answers)
  • Social Security Administration (SSA) Visit the Social Security Web site for a glossary of terms specifically related to Social Security Administration.

 

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