Hows your diet? Are you avoiding proccessed foods? Do you drink alcohol, use sugar substitutes, caffiene or other neurotoxins? Has any of your doctors tried prescribing SSRI's? What about myofascial release? So far it appears you are seriously dedicated to get better but your efforts may be better if you can sort out your symptoms into there various triggers.

I know for me mental stress will result in tension in my back and neck. This results in back pain and some really nasty headaches. I also know that stressing over the emotional component of my injury clouds my judgement. So I leave the seriuos decision's to the respective proffesionals.

Back pain is the domain of my therapists and GP. Emotional advice is the therapists domain. Legal issues are the lawyers domain. By working very hard to surrond myself with top level proffesionals reduces both stress and effort on my part. I trust these people and follow their advice. No one can predict how long your recovery maybe. If you find that after a couple years you are still not progressing then you may want to start considering quality of life issues.

For myself a neuro-psych assesment went a long way to answering most of my questions. I have found this injury has been both a challenge. A deep and diffcult test of my physical, mental, intellectual and spiritual self.