Chronic fatigue syndrome (CFS) is thought to be a complex long-term illness that is poorly understood. The onset is thought to be after an acute infection, with a “flu-like”, respiratory, or gastrointestinal illness; and the differential diagnosis includes polymyositis, polymyalgia rheumatic, rheumatoid arthritis, lupus, cancer, Lyme disease, and chronic hepatitis B or C.
CFS symptoms can vary in each person, and include poor sleep, malaise, depression, stress, anxiety, loss of memory and concentration, dizziness, and orthostatic intolerance, impacting daily activities; muscle aches and pains, deep muscle pain, joint pain without swelling or redness, headache, chronic inflammation, dysbiosis, malabsorption of nutrients, fungal infection, recurrent sore throat, and enlarged and tender lymph nodes, in the neck and armpits; and/or visual problems, light sensitivity, eye pain, blurring, chills, night sweats, low grade fever or low body temperature, irritable bowel, allergies and food sensitivity; and numbness, tingling or burning in the hands or feet.
Scientists have noted a correlation and overlap between chronic fatigue and infectious disease, which to date was only called a “coincidence”. CFS is caused by chronic infections with immortal bacteria, viruses, and parasites; can be caused by one or more chronic infections; and the varying pathogen(s) causing CFS may determine the CFS patient’s symptoms.
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