You should be seen by your doctor
. While you don't comment on whether or not you went to see a doctor after your accident, it is important that you do so immediately. While heart burn can be something that all of us experience from time to time, it is not normal to have new onset heart burn after a trauma like you have had. Many people will have this sort of symptom when they are actually having a much more serious problem, and speaking with a doctor is very important. There are serious conditions that can be life threatening, and need medical attention to be fully diagnosed and treated. With regards to your neck, the jugular vein is one of the bigger veins in your neck that returns blood from your head and neck. Next to it lies the carotid artery, which will carry blood to your head, and transmits the pulsations of your heart beat. After trauma, carotid dissections, aneurysms, and pseudoaneurysms are of concern, and your symptoms would likely require further testing to make sure that none of these are of concern. At the very least, a physical exam and further questioning are in order. Please speak with your doctor immediately.