3 doctors weighed in:
What is the main difference between chronic fatigue syndrome and fibromyalgia?
3 doctors weighed in

Dr. Richard Bensinger
Ophthalmology
2 doctors agree
In brief: Response to rest
Folks with chronic fatigue syndrome (cfs) and fibromyalgia (fm) have a lot of overlapping symptoms.
The principal difference is that in cfs activity seems to worsen the symptoms while fm mostly improve with activity. Fm also responds to some medication while cfs rarely does. Your family doctor can make this distinction for you.

In brief: Response to rest
Folks with chronic fatigue syndrome (cfs) and fibromyalgia (fm) have a lot of overlapping symptoms.
The principal difference is that in cfs activity seems to worsen the symptoms while fm mostly improve with activity. Fm also responds to some medication while cfs rarely does. Your family doctor can make this distinction for you.
Dr. Richard Bensinger
Dr. Richard Bensinger
Thank
Dr. David Rosenfeld
Pain Management
In brief: Nothing alike
Chronic fatigue syndrome refers to severe, continued tiredness that is not relieved by rest and is not directly caused by other medical conditions.
In fm you have a history of widespread pain has been present for at least three months.

In brief: Nothing alike
Chronic fatigue syndrome refers to severe, continued tiredness that is not relieved by rest and is not directly caused by other medical conditions.
In fm you have a history of widespread pain has been present for at least three months.
Dr. David Rosenfeld
Dr. David Rosenfeld
Thank
Get help from a real doctor now
Dr. Eric Weisman
Board Certified, Neurology
32 years in practice
9M people helped
Continue
107,000 doctors available
Read more answers from doctors