I have EXACTLY the same symptoms.went to a cardio and he done an echo, a holter several ekgs and a nuclear(cardiolyte) stress test and still dont know what's causing the pain if you find out plz let me know
Your symptoms are "atypical" for cardiac origin . Also at your age, they are less likely to be from coronary artery disease. An EKG done at rest when you are not having pain may not be able to diagnose blockage in your heart blood vessels. If your symptoms become worrisome a stress test (treadmill stress or treadmill echo or treadmill nuclear) would help in detecting presence of any significant blockage in your heart blood vessels.
Can't remember from your last post why you are taking the metoprolol - I take it as well. Hope the docs answer your question. If I recall, most of us told you that it didn't sound like your symptoms sounded cardiac. The changes in types of pain and discomfort and not worsening due to exertion don't fit what I know of typical cardiac symptoms (but I'm not a doc). I'm not a big believer in the diagnostic ability of an EKG - I think the best non-interventional test is the nuke stress test and I've read about the potential of the 64CT slice. Not sure your symptoms would drive a cardiologist to recommend such a test - again, hope the doc provides you w/ better info.