Has anyone done Biofeedback, and if so, what is it? I have done some research on the Internet, and I have not found a direct answer to this. All of the info that I have been finding is in regards to using a Tens Unit, and I know that there is more to it then just this. I suffer from cronic headaches due to a gun shot to the head, and I wonder if Biofeedback could work for me. I am just so tired of taking pain medication, and I am willing to try anything if it will lead to me getting off of these pills. I thank you in advance for your info.