Causes and Symptoms
Labels Chronic Fatigue Syndrome
The cause or causes of CFS are still being debated. There are five major
theories that researchers have proposed about possible causes of the
disorder:
as primary symptoms (essential to diagnosing the disorder), all of
which tend to come and go:
reported by about 50 percent of people with chronic fatigue syndrome
include:
theories that researchers have proposed about possible causes of the
disorder:
- Viruses. At one time it was thought that CFS is caused by Epstein-
Barr virus (EBV) or by the viruses that cause upper respiratorytract.
It is now believed that there is no single virus that causes
chronic fatigue syndrome - An immune system disorder. This explanation is now thought
unlikely because CFS does not cause tissue damage like lupus or
rheumatoid arthritis. - A central nervous system disorder caused by high levels of emotional
stress. Researchers are still looking into some aspects of this theory. - Nutritional deficiencies. Although some patients do develop food
allergies or become intolerant of certain foods, there is no evidence
that poor nutrition plays a role in causing CFS. - Chronic low blood pressure. The CDC is currently researching the
effects of drugs to regulate low blood pressure in patients with
CFS; some of these patients appear to benefit from these medications.
as primary symptoms (essential to diagnosing the disorder), all of
which tend to come and go:
- Significant problems with short-term memory or being able to
concentrate - Sore throat
- Soreness in the lymph nodes
- Muscle pain
- Pain in several different joints that is not accompanied by redness
or swelling - Headaches
- The patient is not refreshed after sleep
- Fatigue that lasts longer than 24 hours after any kind of exertion
reported by about 50 percent of people with chronic fatigue syndrome
include:
- Earaches, jaw pain, chronic coughing
- Chills and night sweats
- Nausea, vomiting, abdominal cramps
- Dizziness and problems with balance
- Depression, anxiety, and panic attacks
- Shortness of breath
- Dry eyes and vision problems
- Chest pain
- Diarrhea
- Weight loss or gain
- Allergies or increased sensitivity to light, noise, odors, chemicals,
or medications
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