en bloc, thank you for sharing... this is a very logical and probably a correct assumption. I understand you are not a MD and are sharing your experience. This has happened enough times (I have been ill for 18 years following a bad viral pneumonia), but has never been documented or explored.

I assume it is fairly benign... fortunately, it does not happen too often. It is usually present with the mind crushing migraines that precede the flare.

When I first became ill, I was given nitro by the er and it did work.

Other than that, I have noticed a wave of heat/adenaline(?) flushing the area of my chest and heart just prior to an attack. Sometimes, I even have irritation in my chest for a few days after this occurs. Perhaps it is some sort of aura? Who knows.

Such weird stuff. Sounds like you have good care.