Conversation: The conversation between human and AI assistant.
[|Human|] Hello. Several years ago, while rafting in a stream, I hit the back of my skull pretty hard on a large rock. I m quite sure that I had a concussion and was in pretty, bad shape for the rest of the day. Now, four or five years ago, from time to time, it causes me a fair amount of pain. Tonight, it hurts to the touch. Any idea what I might be dealing with and how concerned about this I should be? Thanks In Advance, Andrew Gray
[|AI|]  Hello dear, I understand your concern. Your head trauma few years back may be the cause of your post-traumatic headache. Post-traumatic headache is an entity which results from the chronic long term sequela in brain parenchymal due to head injury.Post-traumatic headache may be severe at times. Next step for you should be to visit a neurologist, and he will probably get a brain imaging done, either computerized tomographic (CT)scan or magnetic resonance imaging(MRI) scan to see if any pathology lies in. I hope it helped.