The symptoms of CFS can be unpredictable, and may improve or get worse over time. Common symptoms include:[1]
- Severe fatigue that doesn’t improve with rest
- Sleep disturbances
- Difficulty thinking/concentrating
- Pain
- Dizziness (especially after standing up)
- Gastrointestinal discomfort
- Postexertional malaise (i.e., The worsening of symptoms following relatively small amounts of physical or mental effort.)