Wired,
I am so sorry you are going through this awful experience. I wish There was a magic bullet for this. Please don't give up. I know how despondent one can feel but you cannot give up the fight.
I remember you posted a previous hair test. Have you done any of the NB protocol yet? On the Face book nutrtional balancing forum there is a good support network there ... many who have had severe symptoms like yours snd improving. Have you tested for other things like Lyme or parasites? Sometimes those critters can lodge in strange places like the brain and wreak havoc on your nervous system? You have probably been around the block with tests for everything but you must continue to search.
I wonder if you have extreme copper toxicity or something else that had really attacked your central nervous system.
Others please chyme in and brainstorm!