I agree with your research of C4 C5 nerve involvement: posted 08-22-2004 11:46 PM --------------------------------------------------------------------------------assuming you've checked everything else out: colds, flus, emotions, stress etc then it could be a restricted C4 or C5 vertebra. i had that a while ago and it felt restricted and "grabby" around my throat and tongue. all gone now after a few adjustments."C4/C5 - A subluxated vertebrae in the mid-neck may cause pressure on the nerves leading to the throat Neck pain and spasm, throat pain, swallowing difficulties, and speech problems may be the result."
http://www.bacdoc.com/Home.htm I have a history of cervical disc fusion for C4, 5, and 6. My choking, feeling as though you have a baseball in your throat at times and difficulty swallowing appeared only after cervical surgery. I had a Swallow series done and other than a little twist (probably from scar tissue) my mechanism looked normal, even though I have to swallow repeatedly to have something go down at times. So I would tend to believe the same nerve involvement can cause these problems. I also know that on studying Anatomy and Physiology in Nursing, any spinal abnormality/injury can affect any body process below the level of injury. So makes sense to me that if the nerve that innervates the esophagus is being hindered in some way then you are going to experience some symptoms.