I can't find anything online that gives a definite "Yes," or "No," answer.
I've been increasingly getting odd "bubbling" sensations in my chest for the past couple months, and more recently I've started getting tightness and pain in my chest, especially when I do anything to exert myself. I've also been short of breath a lot of the time.
I'm worried that years of constant, intense stress and the resulting high blood pressure + pulse rate have damaged my heart, since nothing else has happened that would cause that.
I do plan to see a doctor about this, but I've been waiting until I learn to drive and can take myself to appointments so I don't have to inconvenience anyone else, especially if it turns out to be nothing.