head injury
 

A few months ago I was getting into my vehicle and hit my head on the framework of the door. I had neck pain before this occurred because of herniated disks in my neck. After one to two months I went to see a neurosurgeon (chief at that hospital) to get evaluated about my neck pain after this incident. During my visit I mentioned that the side of my head that I hit was still bothering me. He didn’t seem very concerned about the head pain in that area because I had no vision problems or any symptoms of somebody with a head injury (just aching in that area, no normal headache). I was referred to pain management for my neck pain which was very successful. After about three months from which this first occurred I mentioned to my family doctor about still having pain in that area at times, he sent me for a CT scan which came back negative. I have no headaches, vision problems or anything like that, just an ache in that area at times, months later. What could be causing this?