okay lemme tell you about Chest pain there more than 30 causes of chest pain and only 3-4 indicate heart problem normal EKG does not include heart disease stress EKG can rule out with the specificity of 87 percent one more thing your husband feels breathless while climbing up stairs thats a very important symptom and should not be ignored pointers towards heart disease 1 symptoms 2 blood pressure 3 diabetes 4 lifestyle 5 family history but even if all the four points are absent and only symptoms are present than you should rule out a cardiac condition what should you do ? you should get a stress test done and also 2 D Echo done both being normal is mostly sure of not having any cardiac issue but if you want to be 100 percent sure than get a cardiac CT angio done it’s non invasive and negative result 100 percent rules out heart condition hope I have answered your question feel free to get back on the follow up questions or any medical related question best regards Dr Raza Ali