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    WebMD Symptom Checker

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    WebMD Symptom Checker

    Difficulty concentrating, Drowsiness, Headache and Pain or discomfort

    WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms difficulty concentrating, drowsiness, headache and pain or discomfort including Sleep apnea, Postconcussive syndrome, and Sleep deprivation.

    There are 95 conditions associated with difficulty concentrating, drowsiness, headache and pain or discomfort. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.

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