Several items: If spinal cord is irritated by flexion or extension of neck, this can trigger electrical shock-like sensations due to posterior column of spinal cord reaction. May be seen with B-12 deficiency, Multiple sclerosis, cervical stenosis, etc., and needs to be assessed, as there could be risk to spinal cord integrity. Annoying symptoms, but a warning to heed from your body.
Answered 9/20/2017
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