Not sure the ?
Do you mean, how do u tell my supervisor, or how can i tell if am suddenly weak or fatigued? If feeling weak or fatigued such that cannot function optimally in the or, you must let someone know and not be there.
Sudden weakness is abnormal and must be evaluated by a physician. Comment: nurses, docs, many health professional r lousy pts, or somehow magically don't need to be a pt. Bunk. Bunk. Bunk.