Have you looked at Eagle's syndrome?
This is an often overlooked syndrome that often gives the sensation of something in your throat, problems swallowing, and a variety of pains in the face, throat and neck. It is not easy to diagnose because it often doesn't show up on x-rays or MRI, and also many doctors have not heard of it and thus don't know what to look for.
A 3D-CT scan and an experienced ENT or maxillofacial surgeon are the best way to get it diagnosed. If well diagnosed it is usually treatable. Look for "Eagle's syndrome" on this forum and you'll find more information.
Hope this may help you. Best of luck.