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Old 06-21-2014, 05:57 PM
Mark in Idaho Mark in Idaho is offline
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Join Date: Feb 2009
Location: Somewhere near here
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Mark in Idaho Mark in Idaho is offline
Legendary
 
Join Date: Feb 2009
Location: Somewhere near here
Posts: 11,418
15 yr Member
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Prior concussions can set one up for a sensitive head that will be symptomatic after a simple bump. Plus, a jerking response to a bump can cause neck issues. Trying to understand the cause is a losing battle. Even the experts are no good at it.
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Mark in Idaho

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"Thanks for this!" says:
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