Condition Navigator
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Sinus Headache
Sinus headache – Definition Sinus headache refers to head and facial pain associated with inflammation of the sinuses (called sinusitis).…
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Migraine
Migraine – Definition Migraine is a type of recurring headache. It involves nerves and brain chemicals. Other sensations (eg, auras)…
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Cluster Headache
Cluster headaches – Definition Cluster headache is a type of severe, recurring pain that is located on one side of…
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Fainting – Syncope
Fainting – Definition Fainting is the sudden loss of consciousness. Fainting – Causes In general, fainting is caused by decreased…
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Epilepsy – Seizure Disorder
Epilepsy – Definition A seizure happens when there are certain types of abnormal electrical activity in the brain. During a…
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