Skip to content
My WebMD Sign In, Sign Up

Chronic Fatigue Syndrome Health Center

Font Size
A
A
A

Chronic Fatigue Syndrome - What Happens

In some cases, chronic fatigue syndrome (CFS) develops after an illness such as mononucleosis (mono) or the flu, or after a period of unusual stress. But it may also develop without warning, even if you have not been sick.

The fatigue may come upon you gradually or quite suddenly. Because fatigue can be vague and can be caused by many things, you might not pay attention to the problem for several weeks or months. It is hard to say what is normal with CFS because the diagnosis often is not clear for some time.

Recommended Related to Chronic Fatigue Syndrome

Chronic Fatigue Syndrome

Important It is possible that the main title of the report Chronic Fatigue Syndrome is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.

Read the Chronic Fatigue Syndrome article > >

In general:

  • Symptoms are worse at the beginning.
  • Later, you may feel better for a time and then feel worse again. Or your symptoms may disappear entirely. Many people improve in a year or two and do not have a relapse. Some people continue to have severe fatigue and other symptoms for many years.

Some people find the fatigue, pain, and thinking problems caused by CFS greatly hamper their lives, but other people are not nearly as affected.

  • Most people are still able to perform some of their usual activities at home and work, but they often are unusually tired after they do them. People often have to cut down on social and recreational activities to save their energy for work and family.
  • Other people have trouble doing most or all of their daily activities, including work and the basic chores of daily living. They may have to carefully plan how to best use their energy.
  • People who are most severely affected by CFS may have difficulty getting out of bed and may require help with basic activities such as dressing, eating, and bathing.
Next Article:

WebMD Medical Reference from Healthwise

Last Updated: January 18, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

Today on WebMD

8 Symptoms Of Chronic Fatigue Syndrome
Article
Always Sleepy Causes Fixes For Fat
SLIDESHOW
 
Insomnia 20 Tips For Better Sleep
SLIDESHOW
Exercises That Can Increase Your Energy
SLIDESHOW
 
10 Ways To Get More Zip In Your Life
SLIDESHOW
Fatigue or Something More
VIDEO
 
Your Symptoms
HEALTH CHECK
young woman hiding face
QUIZ