- Chronic fatigue immune dysfunction syndrome is also called chronic fatigue syndrome (cfs) and myalgic encephalomyelitis (me) elsewhere in the world. CFIDS is a debilitating and complex syndrome that is characterized by profound fatigue, which is not improved by bed rest and may be exacerbated by physical or mental activity. persons with cfids most often function at substantially lower levels of activity from their pre-onset capacities. in addition to these defining characteristics, cfids is also associated with a diverse array of symptoms including, for example, cognitive difficulties, impaired sleep, flu-like symptoms such as pain in the joints and muscles, gastrointestinal symptoms, and orthostatic intolerance.
- Fibromyalgia syndrome (fms) or (fm) is a widespread musculoskeletal pain and fatigue disorder for which the cause is still unknown. fibromyalgia means pain in the muscles, ligaments and tendons, the fibrous tissues in the body. most patients with fibromyalgia say that they ache all over. Their muscles may feel like they have been pulled or overworked. sometimes the muscles twitch and at other times they burn. fm may resemble a post-viral state and this is why several experts in the field of fm and cfids believe that these two syndromes are one and the same.