Sudden, extreme fatigue can occur due to various medical conditions, including diabetes, depression, and fibromyalgia. Treatment varies depending on the cause. Fatigue is when a person feels ...

Fatigue and nausea are common symptoms that often occur together. In some cases, they may signal an underlying medical condition that requires treatment. Learn more.

TOPLINE: Fatigue, a common symptom immediately after a transient ischemic attack (TIA), persists up to a year after the event in 53.8% of patients, a new study showed. History of anxiety or ...

Preliminary scientific report. Severe fatigue as symptom of long COVID is characterized by increased expression of inflammatory genes in monocytes, increased serum pro-inflammatory cytokines, and ...

Fatigue is a common symptom of COVID-19. But for some, it can last weeks or months. Here’s what to know about COVID-19 infections and long-term fatigue.

Narcolepsy differs from fatigue because it's a chronic neurological disorder that compromises your brain's sleep/wake control. Your brain can't always choose when you are asleep or awake.