Hello Dr .thank you for your wonderful explanation. In fact, I have forgotten to mention that I have been suffering from anxiety from the past nine months. And being treated for this disorder. But the problem is I get the symptoms of shortness of breath in between episodes of anxiety. I don't have any kind of symptoms when I have anxiety. Moreover, and taking medications for anxiety. But I'm not taking them regularly. But I strongly think that I got some disease in my heart. I have read in one of the websites that chest pain and shortness of breath are signs of heart disease. Is this true?