Exercise Headaches Signs and symptoms
Exercise headaches:
* Are usually described as throbbing
* Occur during or after strenuous exercise
* Affect both sides of the head in most cases
Secondary exercise headaches may also include:
* Vomiting
* Double vision
* Neck rigidity
Primary exercise headaches typically last between five minutes and 48 hours, while secondary exercise headaches usually last at least a day and sometimes linger for several days or longer.
Causes
The exact cause of primary exercise headaches is unknown. One theory is that strenuous exercise dilates blood vessels inside the skull.
Secondary exercise headaches are caused by an underlying problem, such as:
* Bleeding in the area between the brain and the thin membranes that cover the brain (subarachnoid hemorrhage)
* Abnormalities in a blood vessel leading to or within the brain
* Cancerous or noncancerous tumors
* Intermittent obstruction of cerebrospinal fluid flow
* Reduced blood flow in the arteries feeding the heart
* Sinus infection
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