Hello! Welcome and thank you for asking on HCM! I read carefully your question and understand your concern. His symptoms may be related to occipital neuralgia. It is a common complication after head trauma. I recommend consulting with the neurologist for a careful physical examination for neurological signs. A brain CT scan may be needed if suspicions of an intracranial lesion are raised. You should discuss with your doctor on the above disorder and the possible treatment options (an antidepressant or an antiepileptic drug like topiramate or depachine may be helpful). Meanwhile I recommend starting therapy with indomethacine twice daily, if no contraindications. Hope to have been helpful! Best wishes, Dr. Aida