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Headaches are classified as either primary or secondary, and primary headaches are caused by problems with the structures in the head that are sensitive to pain. Secondary headaches are caused by any one of a number of u... More »

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Causes of nonprimary chronic daily headaches include conditions such as traumatic brain injuries, very high or very low intracranial pressure, inflammation of the brain's blood vessels, and infections such as meningitis,... More »

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A headache with pain confined to the temples is often a tension headache, states WebMD. The pain is usually a constant ache, rather than throbbing, and it is sometimes described as "vise-like." Additionally, tension head... More »

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Some symptoms of neck arthritis are pain that may extend to the shoulders and arms, stiffness, headaches, muscle spasms, trouble turning the head and grinding sounds as the neck moves. Neck arthritis is also called cervi... More »

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Cluster headaches, often called the worst type of headache pain, are severe headaches on one side of the head that happen in groups, states WebMD. Cluster headaches usually occur over weeks or months and come in cycles, ... More »

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Symptoms associated with temporomandibular joint (TMJ) dysfunction include jaw pain, muscle pain, neck pain, shoulder pain, ongoing headaches and migraines, dizziness, ear pain, ear pressure, painful popping or clicking ... More »

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Symptoms of depression can include difficulty concentrating, trouble remembering details, problems making decisions, fatigue, feelings of worthlessness or guilt, feelings of hopelessness or helplessness, pessimistic beha... More »

www.reference.com Health Conditions & Diseases