Your symptoms sound similar to mine. My ENTs did a sialendoscopy first, then a Tonsillectomy. It was a CT Scan with contrast that found my Eagle Syndrome. Two horrible surgeries later then they find it. The radiologist didn't even see it, they only saw cyst in nose. My ENT took my disc and kept moving it forward and backwards and said "how did I miss this". If I didn't fight with him for over 30 minutes he may have never looked more closely. I have relief of symptoms when I swallow when people usually have pain when swallowing. My calcified ligament is pressing on my nerve all day. My symptoms would come and go for about two years. Now my symptoms are cconstant.I am on maximum Tylenol and Motrin just to make it through my work day.