Good Morning Kadakada
First i wanted to welcome you to our chronic pain forum. Glad you found us but sorry your are having so much pain.
Have your doctors given you a diagnosis yet? do you have trigeminal neuralgia?
What meds are you taking now?
I have a tmj disorder, this is your jaw joints. I also suffer with intractable headaches 24/7 and like you have tried all the meds, seens all the specialists and done any treatment I could find. In all my researching I came across a surgical procedure for an occipital nerve stimulator and that is what I am looking into right now. If you google that you will find a lot of info. You could see a neurosurgeon who would be the doctor to do this procedure. Do you live in the states? As this surgery is done in several states. I am in canada and there are only two doctors who do this. I don't know anything about the procedures you have mentioned in your post.
I live on ice packs 24/7 to get thru my day.
Please feel free to post any other questions here that you might have.
Keep posting and let us know how you are doing as well.
Suzane