By Ellie Cannon, October 10, 2011
ME or myalgic encephalitis is a chronic condition with excessive tiredness as the predominant symptom. Sufferers also complain of joint pains, muscle ache, erratic sleep patterns and poor concentration. It is often referred to as chronic fatigue syndrome (CFS).
There is no test to definitely diagnose someone with ME, other than having the catalogue of typical symptoms for a four-month period.