Fatigue is a debilitating kind of overall weariness, which is not predictable and unrelated to your activity level. Increase in body temperature will temporarily worsen fatigue; conversely, air-conditioning or a cool drink will lower your temperature, possibly enabling you to feel better and continue.
MS-related fatigue generally occurs on a daily basis.
It tends to worsen as the day progresses.
It tends to be aggravated by heat and humidity.
It comes on more easily and suddenly.
It is generally more severe than normal fatigue.
It is more likely to interfere with daily responsibilities.
Fatigue
Fatigue is a debilitating kind of overall weariness, which is not predictable and unrelated to your activity level. Increase in body temperature will temporarily worsen fatigue; conversely, air-conditioning or a cool drink will lower your temperature, possibly enabling you to feel better and continue.