don't know if this will help or if I'm overstepping boundaries. I was a Psych nurse all my working life and worked nights with a nurse who's husband was classed as disabled due to headaches constantly and I mean non stop. After many yrs and I mean about 20yrs of back of forth to Dr's appointments and different hospitals in different parts of the UK he has been fitted with an appliance of sorts in his brain. First he was found to have too much blood or too thick blood ( not sure what that was or what it's called) so he would have blood drained at times. Now he is just waiting till the swelling goes down as he only just got the surgery.he will then have it switched on and the computer will collaborate what impulses he needs.Might be worth doing your own research.