Hi from new member,again Confusion is often my close friend,because of the level of mental fatigue i get so please don't take anything i type here the wrong way. Iv.e had cfs/me for a number of years,the first 17 or so years were mainly high levels of fatigue,like the malaise type,on most days.Rest or sleep did nothing to help with this.I also had a drugged up feeling,but wasn't on any medications to cause this feeling. I didn't really feel the heavy/muscle kind of pain then,i felt more weak and lethargic much of the time.I also had high levels of mental fatigue.On occasion i would get calf pain/cramps that would make it difficult to bend my legs at the knee,such as to climb up or down stairs,and would mean walking was affected. I was never bedridden,but other aspects of my illness meant i suffered with noise sensitivity,light sensitivity and being in the heat of a summers day,just leveled me. I had bad mood swings and was often over emotional.After years and years ,my symptoms increased,making leaving my home not doable for most of the time and i less able to carry out normal activities,as much as i used to be able to do Jump forward to 2009,the symptoms changed,a lot and have remained pretty much the same. What i don't understand is the way i feel the fatigue,if you like. The weak ,lethargic thing has turned to heaviness in my legs,muscle stiffness and pain.Balance is often affected,So when walking out doors,i get this muscle fatigue build up and i am still limited by how often i can do this. If i do it too much i feel faint,like i'm going to collapse.Other activities are also limited.I get mentally fatigued easily,which causes problems with concentration,memory,recall .I also get eye strain which causes problems with vision.I have problems with sleep on a major scale since the changes and insomnia at times. So my question is.. finally...Is the muscle fatigue PEM or Malaise A mixture of both or non,i feel a bit mixed up and uncertain about the difference in how i'm feeling the symptoms now to how i felt them years before. I think that's why i'm doubting the whole cfs/me diagnosis..now. Thank you for reading this.