Hello! My name is Dr. Aida and I am glad to attend you on Healthcaremagic! I understand your concern and would explain that it is quite common to have persistent headache after a head concussion. I recommend having some rest and avoid a possible repeated trauma. If the headache persists, I would recommend performing a brain CT scan or brain MRI, just to reassure that everything is OK. If you have persistent nausea or gait imbalance, I would recommend going to the ER for a brain CT scan to exclude possible delayed intracranial bleeding. If headache persists after some months, despite normal CT scan or MRI, an antidepressant may be needed. Hope you will find this answer helpful! Kind regards!