I just read your symptoms, and they are quite a bit like mine right this minute. My chest, bacj, and left arm are killing me! I have Crohns disease, and a few years back, my GI told me that one of the three Crohn's ulcers that are in mt stomach is located right on the Vagas nerve and causing this horrible pain. I also have intermittant esophageal spasms, usually with the first bite or two of a meal, that actually pushes the food I have swallowed back up my throat into my mouth or nose. This is usually followed by hiccups.
I went to an ENT two weeks ago because I have had a cracked, croaky voice for almost 6 months, and no infection cultured out from throat swabs. He has me taking an extra Prilosic OTC at night, which makes my daily dose three per day, and using AsthmaCort inhaler two puffs twice a day. So far, no help. Any clues from anyone would be a great help!