Thank you for your quick reply.........I had an MRI which revealed all of my problems, and why I am experiencing the pain that I am but at the time I did not have this additional shocking pain in my right arm, it can be debilitating, and my arm kinda jumps when it happens, more like a sharp, fizzing lightening type sensation...it settled for a while and has now come back big time! it has been happening on and off for most of the day now. I have taken an open appointment with my spinal specialist and due to see him in may. Is it likely that a nerve root compression can happen so quickly after a mri that showed initially there wasnt? ive been looking on the internet and found all sorts of sinister things that could be going on with me, like heart problems, lung problems you name it...im a cybercondriac I think!