I hear hiatal hernia or thyroid. If your stomach is hiatal right now, the chiropractor can help with that, easily. I had a tightness and squeezing of the throat that worsened until I got on iodine. It seemed to get worse right before I had my period and tapered a few days after I stopped bleeding. It was gone within weeks of starting iodine. I 'stopped' iodine a little while back and after a month, the squeezing started again. Hmmm...my adrenals were wacked out and so was my digestion at the time.
If your cervical vertebrae are in check and you don't have a fluttering esophageal feeling, I'd get my stomach adjusted by your chiro. If the issue perpetuates after that - I'd look to iodine and selenium.