I just had a bad attack while we were starting to have rice (with yoghurt) for breakfast. Not glutinous rice - it was Basmarti rice. It was severe enough to be a heart attack, but slightly more in the upper chest than right over my heart. It spread to my back.
I've had it before enough to clearly link it to starting to eat rice. We don't often have rice even though it is an ideal staple because I've learned to regard it with distrust without any idea why.
The idea that it is sticking in the esophagus doesn't quite ring true because it doesn't happen with anything else. Maybe something about the grain structure is hard for the gullet swallowing reflexes to handle. I'm trying to think of any other foods that have this type of structure. Thinking of nuts which we eat lots of.
It doesn't seem like an allergic reaction - no histamine response.
Definitely not gastro-esophageal reflux - not that sort of thing at all.
When it happens, quite apart from the pain, I have to talk myself through it as to whether or not it is a heart attack. Today I wanted to have a mouthful of fluid but couldn't get through the pain enough to pick up my cup and drink a mouthful. My husband was with me which I was glad of and I could tell him what was going on. My vision was also spinning somewhat.
I wonder about Chinese acupuncture - energy meridians. Far-fetched.
I do have quite a severe thyroid underfunctioning (Hashimoto's) but this links to food craving and lethargy and weight gain. You'd have to explain the mechanism.