i'm not able to type this, so my friend is. I had brain surgery many years ago for an AVM hemorrage illness (right now my head is hurting from trying to read & think) . A few months ago i fell and hit the same area of the brain that they removed the AVM (where my skull was bolted back together) now my symptoms are concussion, PCS, headaches, anxiety, depression, PTSD, tinitius, and taking 9 different medications throughout the day, and complicated by a torn rotator cuff (which hasn't been repaired yet because of the head injury) and more (can't think of them all right now). I have constant headaches and now the doctors want to try the phenol ablation of the greater occipital nerve. has anyone had this done and what were your results??? thank you for helping me and may God Bless to everyone out there suffering as I am!!