Im sorry to hear that you are still having trouble. I am 17years old living with PSC and chronic nerve pain triggered from my concussion. I got my concussion in September of 2011 and i am still healing. The healing for a traumatic brain injury takes very long for some. I have been to numerous doctors, been on soo many medications, done acupuncture/yoga/meditation, gotten injections in my head. SO far nothing has worked. I get sharp pains in my head as well, along with headaches 24/7. It has been a year and a half since i have gone one day without a headache. I have had 2 surgeries on my head to implant a neurostimulator in hopes of calming the pain down. So far nothing has worked for me but i am not giving up. Keep your head up, things will get better. your not alone in this.