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    WebMD Symptom Checker

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    WebMD Symptom Checker

    Drowsiness, Flickering lights in vision, Headache and Lightheadedness

    WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms drowsiness, flickering lights in vision, headache and lightheadedness including Sleep apnea, Caffeine withdrawal, and Migraine headache (adult).

    There are 94 conditions associated with drowsiness, flickering lights in vision, headache and lightheadedness. 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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