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Extreme tiredness during daytime even after resting. Blood tests normal. What could this be?

I m a 25 year old male, no history of medical problems, and for the past few years I ve been feeling excessively tired during the daytime. Even on the weekends, when I definitely get enough sleep, I m tired enough to feel like napping all the time during the day. I ve had an extensive blood test and they could find nothing wrong with me, so they sent me home. Do you have any clue as to what is ailing me?
Asked On : Mon, 18 Mar 2013
Answers:  1 Views:  21
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Question is related to
Diseases and Conditions
Lab Tests
Neurologist 's  Response
Nov 2013

Thank you for posting your query.

The common medical problems that lead to tiredness/sleepiness are hypothyroidism (lack of thyroid hormones), anemia (low hemoglobin), etc. I am sure they have been excluded by blood tests.

In that case, you should undergo a sleep study to exclude conditions such as narcolepsy (excessive sleepiness) and obstructive sleep apnea (where there is lack of proper sleep at night due to obstruction in breathing).

Sleep study can be done in consultation with a neurologist/pulmonologist.

Best wishes,

Dr Sudhir Kumar MD (Internal Medicine), DM (Neurology)

Senior Consultant Neurologist

Apollo Hospitals, Hyderabad,

My personal URL on this website:

My email:
Answered: Tue, 19 Mar 2013
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