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    WebMD Symptom Checker

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    WebMD Symptom Checker

    Difficulty falling asleep, Difficulty sleeping, Headache (worst ever) and Lightheadedness

    WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms difficulty falling asleep, difficulty sleeping, headache (worst ever) and lightheadedness including Depression (Adult), Excessive caffeine use, and Medication reaction or side-effect.

    There are 48 conditions associated with difficulty falling asleep, difficulty sleeping, headache (worst ever) 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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