What would it feel like to have chronic fatigue syndrome?

See below: Medically unexplaned fatigue for over 6 months not relieved by rest and interfering with normal activities plus 4 or more of the following: impared memory/concentration sore throat tender neck or axillary lymph nodes muscle pain multijoint pain new headaches unrefreshing sleep postexertion malaise.

Lots of symptoms: Symptoms can vary from person to person and the list is so long i would exceed the maximum reply size this site allows, but the "big ones" are constant tiredness not explained by exertion or lack of sleep, muscle and joint pains, new or changed type of headaches, foggy thinking, and many others. There are several similar syndromes, so you need a doctor to confirm which one causes your issue.