I can't believe they took so long to do xrays!
seems a MRI or CT should be next to get the full details of your spine conditions.
No Chiropractic adjustments tried ?
They would need to see the films before hand I'm sure.
A evaluation by an expert DC might be a good option.
We do have a Medications forum too.
http://neurotalk.psychcentral.com/forumdisplay.php?f=72