Plz give it a read. So long? what to do?

Little long bt plz advise! Any kind of minor stressful thought/ strong emotion like being startled by remote falling down, sudden noise at night outside triggera an immense chest discomfort and pressure.. This can radiate to my left arm and also to back sumtimes. stress leads to release of adrenaline which can cause all of it but in my case the heart rate doesnt always increase like right now I am in chest pain episode but my hr is only 68... My discomfort is just like angina but lasts for atleast 2 hours n sumtimes even more I have had several ecgs n many in emergency- some of them at 130/140 bpm but non has shown any sign of ischemia!!! If I get coronary spasms then do they last so long? Am low in b12 and vitamin d and 4 years back Mri spine showed loss of normal curvature but spine xray recent normal... Anti anxiety meds taken since 2 months havent worked a bit.. What to do???