It may be a good idea to see a doctor just in case.
Since the pain seems significant, I really think you should have yourself looked at. If the pain is in your neck or back, you should definitely go.
Check out your helmet, if you hit your head, or if you experience any indication of head trauma :banghead: like headaches, problems walking, nausea, blurred vision, numbness, you should definitely get yourself checked out asap. :thumbup: