Dehydration: Is the most common cause. Other causes can be migraine, severe tension headache, stress, medication hangover, fever, illness, flu. I am aggressive with headaches and one that has lasted for two days and diminishes you ability to function needs to be evaluated. It is unlikely that a stroke is the problem but it is in the differential. Take care of yourself. Be seen!
Answered 10/3/2016
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A doctor has provided 1 answer
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