Hi again,

Thanks for that. I thought it may have been associated with my herniated lumbar discs, or my Scheurman's disease. I had a rad neck dissection and radio only.

Found this:

"Six weeks to 3 months after radiation therapy, patients may note an electric-shock sensation in the lower extremities on flexion of the neck. This so-called Lhermitte's syndrome is related to transient demyelinization of the cervical spinal cord." Apparently it can last for 6 months, and gradually goes away.

Cheers!

Tizz