My injury was the right frontal region. I suffer from pist concussion headaches. I also get the sharp stabbing pain, sensation. It hurts but because its a fleeting pain I think we look at it differently. I feel its response to stimulia as well as rapid changes in the weather. I wish you luck. Mark I did ask my neuro and he said since its been almost a,year he isnt concerned. He feels in nine months to a year ill regain some working capacity. I wont regain full cognitive or moods as I had before. Not so sure what mood is about. Good luck! "