The illness varies greatly in its duration. A few recover after a year or t=
wo. More often,
those who recover are more likely to do so from 3 to 6 years after onset. O=
thers may
recover after a decade or more. Yet for some, the illness seems to simply p=
ersist.

CFS often occurs in cycles. It can be frustrating to obtain some relief, bu=
t then not
know whether you have recovered or if you are merely between cycles.