Before revision: Some fatigues (RA, cancer fatigue) seem to often be continual (24/7) whilst others (MS, Sjögren's, lupus, brain URL ) are often intermittent.
After revision: Some fatigues (RA, cancer fatigue) seem to often be continual (24/7) whilst others (MS, Sjögren's, lupus, brain injury ) are often intermittent.