I had a swallowing issue 20 or 25 years ago. Sometimes, it felt like things wanted to come back up just as I was trying to swallow. I had it checked by a neuro and ENT and even a Stanford gastro, It ended up being a nerve from my neck that was messed up that a chiro fixed with a spinal adjustment.

I wish I could find another chiro with his skills because the issue comes back from time to time.