Several reasons: It depends on how long you have- moreover if it is that severe you should go to er immediately as you be having subarachnoid hemorrhage or a tumor -- do not want to scare you, but you need get checked.
Answered 7/19/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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