question: Hello doctor, Five weeks ago, I fell down while mountain-biking. I went over the handlebars and hit my head and chest. I was wearing a helmet and a chest protector and both of them had cracked as a result of the impact. The helmet strap had strangulated my neck pretty hard. Ever since I have been continuously having sensation pressure at the place where the strap had impacted. Activities like turning my neck, yawning, laughing cause some pain. Over the past five weeks, the symptoms have not improved. I am very worried because I am afraid I might have to deal with this forever. They did a CT scan and said that it was normal. Should I ask for an MRI? Could this be some kind of hernia?