I am still not fully convinced that I did not have this: https://www.ahajournals.org/doi/full/10.1161/circulationaha.111.037283
My angiogram pictures were near identical in one branch of the artery, and the cardiologist who did the stent said that there was a band of contractile muscle fiber over the narrowed site.
My cardiologist was disinterested in the possibility of coronary artery spasm.