Have you spoken to your doctor about this at all? This definately sounds more then just tension. You need more then just an x-ray too. You need your doctor to schedule an MRI and a CT-Myleogram. That will tell the tale, or at least get you on the right track. I'd be researching who the best Ortho is in the area. And the best Neuro. You definately need some muscle relaxers and some pain meds.
Have your primary care physician schedule the tests, then you'll have them all when you find the Ortho you'll go to, to consult. There are plenty of other tests, but these are the basic ones that will tell a lot of information.
Good luck to you and in the mean time, get some smelling salts. We can't have you passing out while you're driving down the freeway!
Let us know how it goes!