Chills, Fever, Headache, Joint pain, Muscle pain: 10 Possible Causes
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What is causing your symptoms? 10 possible conditions

See a list of possible causes in order from the most common to the least.


Cold and Flu Overview

Common colds and influenza are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Shared symptoms include headache, cough, sore throat, and more.

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Swine Flu

Swine flu, or H1N1, is highly contagious and can spread quickly from person to person. A simple sneeze may cause thousands of germs to spread through the air. Symptoms are similar to regular influenza.

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There are many symptoms of HIV/AIDS, including persistent skin rashes, night sweats, and mouth sores.

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Infectious Mononucleosis

Infectious mononucleosis, or mono, refers to a group of symptoms usually caused by the Epstein-Barr virus (EBV).

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Lyme Disease

Lyme disease is an infectious condition transmitted via tick bite. A "bull's eye" rash at the site of the bite is an early symptom of this disease.

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Legionnaires' Disease

Legionnaires' disease is a severe type of pneumonia, or lung infection. Learn about its symptoms, causes, treatment, and prevention.

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Histoplasmosis is a type of lung infection. It is caused by inhaling fungal spores. Spores are found in soil and in the droppings of bats and birds.

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Brucellosis is a disease caused by bacteria from the genus Brucella. Learn more about how this condition is spread, symptoms, and treatment.

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Weils Disease

Weil's disease is a severe form of the bacterial infection leptospirosis. Learn how to lower your risk of getting this potentially life-threatening illness.

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Valley Fever (Coccidioidomycosis)

Valley fever is an infection caused by the Coccidioides fungus. Learn about valley fever symptoms, causes, treatment, prevention, and more.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.