Common Symptoms of CFIDS Below are some of the more common symptoms experienced by people with CFIDS (PWC's). The following is for general information purposes only. Check with a licensed health care practitioner if you think you may have CFIDS. PWC's experience a wide range of symptoms which tend to fluctuate in severity. Symptoms tend to be individualistic. Some PWC's experience a certain subset of symptoms, and may not have others. Or they may have a set of symptoms for awhile and then no longer experience some of them, but find they are now experiencing new symptoms. The major symptoms include persisent fatigue and neurological problems. The fatigue (sometimes referred to as the f-word by PWC's) is unlike the usual fatigue that the average person experiences after working hard, or engaging in busy, hectic, or stressful activities. It is difficult to imagine the severity of the fatigue and how it impacts a PWC's ability to function. This is probably why this symptom is often misunderstood by those unfamiliar with it and why this illness is often not taken seriously. PWC's often experience excessive fatigue of a persistent nature which is not substantially alleviated by rest, and which significantly reduces their ability to function at previous occupational, educational, social, and/or personal levels. The severity can range from getting unusually fatigued after stressful events to being totally bedridden and completely disabled. Exertion may cause a relapse and a worsening of symptoms, which can last anywhere from hours to months. Many PWC's also experience pain in muscles and joints, and muscle aches which may be difficult to alleviate with pain medication. Cognitive problems such as difficulty reasoning, substantial impairment of short- term memory and ability to concentrate, spacial disorientation, difficulty communicating thoughts and finding the right word, difficulty following conversations, and "feeling in a fog" are often experienced. Other symptoms include substantial increase in allergies and sensitivity to foods, odors, chemicals, medications, vitamins, supplements; unrefreshing sleep or sleep disturbances such as sleeping too much, inability to fall asleep or remain asleep; headaches of a new type or severity; gastro- intestinal problems; persistent sore throat; tender lymph nodes; visual disturbances such as blurring, sensitivity to light, eye pain and frequent prescription changes; chills and night sweats; shortness of breath; dizziness and balance problems; abnormally low temperature; sensitivity to heat and cold; intolerance of alcohol; irregular heart beat; chest pains; abdominal pain; diarrhea, irritable bowel, numbness or burning in the face or extremities; menstrual problems including PMS and endometriosis; rashes and hypersensitivity of the skin; weight changes such as gaining excessive amounts of weight or difficulty maintaining weight, without changes to diet; hair loss; fainting; muscle twitches; seizures; hearing disorders or sensitivity; dryness of mouth and eyes; and psychological problems such as depression, panic attacks, and personality changes. Often PWC's experience persistent flu-like symptoms. Several studies have reported a difference between people with CFIDS and people who are diagnosed as clinically depressed. Depression in PWC's is generally believed to be a result of being chronically ill and suffering the substantial change in life style and quality of life. The rigors of trying to find effective treatment and support also contribute to depression and frustration in PWC's. As a result, depression is usually seen as secondary to having CFIDS rather than a primary factor. (Information is a composite from the CFIDS Association of America and other sources.) .