Fatigue

Fatigue is a common symptom that can range from mild to severe. It is usually characterized by a feeling of tiredness and exhaustion that can range from mild to severe. It can develop gradually over time or suddenly, and can be caused by a variety of factors, including physical or mental stress, sleep deprivation, medication side effects, or an underlying medical condition. Common manifestations of fatigue include difficulty concentrating, irritability, and a lack of motivation.