Feb 20, 2026 · Many conditions and lifestyle factors can cause this common symptom.

Jan 17, 2026 · Overview Myalgic encephalomyelitis/chronic fatigue syndrome, also called ME/CFS, is a complicated condition. It causes extreme fatigue that lasts for at least six months. Symptoms worsen …

Feb 20, 2026 · Many conditions and lifestyle factors can cause this common symptom.

Jan 17, 2026 · Diagnosis There's no single test to confirm a diagnosis of myalgic encephalomyelitis/chronic fatigue syndrome, also called ME/CFS. Symptoms can mimic those of …

Aug 23, 2024 · COVID-19 can have lasting symptoms that affect many parts of the body. Learn more about the symptoms and effects of long COVID.

Clinical Overview: Malaise and fatigue. https://www.clinicalkey.com. Accessed Nov. 30, 2022. Maisel P, et al. Fatigue as the chief complaint — Epidemiology, causes, diagnosis, and treatment.

Apr 25, 2025 · Swollen lymph nodes most often happen because of infection from bacteria or viruses. Rarely, cancer causes swollen lymph nodes. The lymph nodes, also called lymph glands, play a vital …

Jul 29, 2025 · These feelings of anxiety and panic interfere with daily activities, are difficult to control, are out of proportion to the actual danger and can last a long time. You may avoid places or situations to …

Jun 13, 2020 · Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, and …

Oct 9, 2023 · Cold sweat Fatigue Heartburn or indigestion Lightheadedness or sudden dizziness Nausea Shortness of breath Women may have atypical symptoms such as brief or sharp pain felt in …