The three stages of Chronic Fatigue Syndrome (CFS) are: early, moderate, and severe.
At the early stage of CFS, the person may experience fatigue that lasts for 6 months or more, along with at least four of the following symptoms: cognitive impairment, sore throat, tender lymph nodes, muscle pain, joint pain, headaches, unrefreshing sleep, post-exertional malaise, and extreme exhaustion following physical or mental activity. This stage is usually mild and may last for up to two years.
In the moderate stage of CFS, symptoms become more intense and the person may experience a range of physical and psychological issues. These issues may include depression, anxiety, difficulty concentrating, memory loss, severe fatigue, and unrefreshing sleep. The person may also experience frequent headaches, muscle weakness, joint pain, and digestive issues. This stage can last for up to five years.
In the severe stage of CFS, the person may experience severe fatigue, exhaustion, and physical and psychological issues. This stage is often marked by a complete inability to perform normal activities such as working and taking care of daily tasks. This stage can last for years and may lead to a complete inability to function.
The three stages of CFS are important to understand in order to properly diagnose and treat the condition. It is important to note that the severity of each stage can vary greatly from person to person. It is also important to seek medical attention if you are experiencing any of the symptoms associated with CFS.