Can neck strain during exercise cause lhermitte's sign (sit ups, push ups, stair climbing).began w/pulled muscle in lower back&spread to neck.

Really shouldn't: Understand that lhermitte's sign is a shock-like sensation that radiates to arms and legs during a flexion or forced flexion maneuver of the neck. Classically, this was used to identify ms. It is presently used to commonly identify symptomatic spinal cord compression. So, if you are not having the arm/leg symptoms, this is not lhermitte's sign. If yes, you should consider evaluation by spine md.