Ami Joi, have you ever heard of neurological chiropractors? As I'm reading your post I just wonder... if they can help. Neurological schooling for chiropractors is an up and coming thing.
i have the same sort of vibration problem as you describe, along with pain. in my case it is severe poisoning that took place over a long period of time, and it got into the brain. a neuro. chiro. near me diagnosed the part of my brain that he thinks is affected- within 10 minutes. he gave me exercizes to do.
There is a training institute, by a dr. carrick, that teaches this to chiropractors. They can refer you to someone in your area that has graduted.