Conversation: The conversation between human and AI assistant.
[|Human|] My head has hurt for a whole half a day, went to sleep, woke up and it still hurts.I hear clicking on the left side of my head where it hurts along with pressure.What is this?Also hurts my head when I cough.I hit my head and got a concussion about 3weeks ago.
[|AI|]  Hello! Welcome and thank you for asking on Chat Doctor! Regarding your concern, I would explain that your symptoms could be related to the head concussion. Anyway, if the clicking noise and headache persists, I would recommend consulting with a neurologist and performing a brain MRI or MRA, to exclude a possible vascular lesion. If you have symptoms like nausea or confusion, I recommend going to the ER for a brain CT scan, to exclude possible delayed subdural hemorrhage. Hope you will find this answer helpful! Wishing all the best,