““Many people confuse “chronic fatigue” (which is a symptom of many chronic conditions, including rheumatoid arthritis, fibromyalgia, or lupus) or “general tiredness” (which is lifestyle-related), with the specific illness “chronic fatigue syndrome” (ME/CFS). To clarify the differences, here are some of the major symptoms of ME/CFS: - unexplained physical and mental fatigue for an extended period of time - post-exertional malaise (meaning an inappropriate loss of physical and mental stamina and a worsening of symptoms after any effort) - sleep dysfunction - pain - neurological/cognitive manifestations - autonomic manifestations, such as orthostatic intolerance - neuroendocrine symptoms, such as subnormal body temperature - immune system changes, such as recurrent flu-like symptoms.””
