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    WebMD Symptom Checker

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    WebMD Symptom Checker

    Difficulty breathing through nose, Drowsiness, Headache and Lightheadedness

    WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms difficulty breathing through nose, drowsiness, headache and lightheadedness including Sleep apnea, Caffeine withdrawal, and Acute sinusitis.

    There are 98 conditions associated with difficulty breathing through nose, drowsiness, 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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