Ask the doctor: When does fatigue indicate illness?
![l0613b16207249748488](https://domf5oio6qrcr.cloudfront.net/medialibrary/3051/l0613b16207249748488.jpg)
If not, could your fatigue be caused by an illness? Many different diseases—too numerous to mention—cause fatigue. Is your recent fatigue a new experience, something that you have not experienced in the past? If so, that's worrisome, because it could be a sign of underlying illness.
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