A member asked:

I have been tested for underactive thyroid but was negative. still lethargic. why?

A doctor has provided 1 answer

Iron: Have you checked your iron levels? An iron deficiency or small GI bleed resulting in low iron levels can be a cause of fatigue. Ensure you're also properly hydrated as well with at least 64 oz of h2o.

Answered 6/10/2014

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