It could be any one of a number of things...I have anxiety and a hiatus hernia...at times it feels as if I am going to suffocate. When I eat it feels like a huge fist has lodged about half way down and the food just sits there, not a good feeling.

I have actually had to throw up because it can get very painful when the food stops moving...no fun either, but works.

Hope you find out soon what is causing this and that it is treatable.