Symptoms and Complications
Extreme fatigue that lasts at least six months is the hallmark symptom of CFS. People are constantly
exhausted and feel that their stamina is continuously low. Other symptoms include:
- mild fever
- sore throat
- tender neck with swollen lymph nodes
- decreased ability to concentrate
- muscle weakness and joint pain
- headaches
Problems with concentration and memory often occur. A person might have mental fogginess,
impaired short-term memory, or the inability to concentrate to the point where
regular activities are disrupted. Other symptoms such as gastrointestinal problems,
sleep disorders, or abnormal body temperatures are also commonly reported.
Symptoms may be severe enough to interfere with work performance, leading to sick leave and extended periods of bed rest. The symptoms of CFS can last for several years. However, they're usually at their worst in the early stages of the illness. Some people never return to their original energy levels. Symptoms tend to reappear during times of emotional or physical stress.