Here is some additional information on the presence of white matter lesions in CFS. It states, "Pathological changes have been observed in CFS patients, including white matter lesions in the CNS and cerebral hypoperfusion. Other findings suggest CNS involvement include vestibular dysfunction and GAIT ABNORMALITIES." http://www.chiro.org/nutrition/ABSTRACTS/Chronic_Fatigue_Syndrome.shtml I think these diseases are all one and the same. I believe they have been given different names based on the progression and severity of symptoms.