Diseases and Conditions

Chronic fatigue syndrome

Symptoms

Symptoms of chronic fatigue syndrome can vary from person to person, and the severity of symptoms can fluctuate from day to day. Signs and symptoms may include:

  • Fatigue
  • Problems with memory or concentration
  • Sore throat
  • Headaches
  • Enlarged lymph nodes in your neck or armpits
  • Unexplained muscle or joint pain
  • Dizziness that worsens with moving from lying down or sitting to standing
  • Unrefreshing sleep
  • Extreme exhaustion after physical or mental exercise

When to see a doctor

Fatigue can be a symptom of many illnesses, such as infections or psychological disorders. In general, see your doctor if you have persistent or excessive fatigue.