Weakness or Fatigue
Feeling weak, tired, or exhausted without apparent illness. Weakness or fatigue that lasts more than 2 weeks but less than 3 months is often due to lifestyle factors, such as stress, or the after effects of illness. Weakness or fatigue that lasts more than 3 months, especially with unexplained weight loss, requires your doctor's attention.
Have you felt weak and fatigued for less than 3 months?