A friend of my father unfortunately had a similar issue. Complained of acidity in the morning, dead from a heart attack by afternoon. It's much better to be over-cautious in such cases.
The key word here is father. If you're in your 20s or 30s, chances of it being heart attack instead of panic attack are incredibly low.
While I mostly agree, I myself unfortunately very likely experienced pericarditis after my covid shot. Worst pain I've had in a long time, but I was "sure" it was just gas and "couldn't be a heart issue because it's been going on for x hours or else I'd have been dead". I wish diagnostics was easier for health & heart conditions.