Hello! I read your question carefully and understand your concern! Your symptoms may be related to the trauma or a temporary dysfunction in this part of the brain after the trauma. It is normal sometimes to have a hypersensitive region to the touch in the place of the injury. It may be caused by the compression of the soft tissues and the small nerves which innervate this area. I recommend you consulting with your GP for a careful physical examination for neurological signs, a routine blood test for inflammation. A brain CT scan may be necessary to exclude a possible delayed intracranial hemorrhage. If all the above mentioned tests result normal, I would recommend you starting therapy with an antidepressant like amyriptiline or SSRI class which would really help with your headaches. Hope to have been of help! Greeting! Dr. Aida