When I swing my hand very fast (while playing table tennis or while practicing boxing), I have a very sharp pain in the back of my head. The pain is like a nerve from the brain is being pulled. What can I do?
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When I swing my hand very fast (while playing table tennis or while practicing boxing), I have a very sharp pain in the back of my head. The pain is like a nerve from the brain is being pulled. What can I do?
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