Greetings! Thank you for your question and welcome to HCM. I carefully read your query. Mitral valve prolapse (MVP) is a benign condition that is estimated to be found in 16% of young ladies, and it may take up to forty or fifty years to produce symptoms, only after a chronic mitral regurgitation is installed. I would go on and say that further clinical investigation should be in order at this time, but I am quite confident that, if something was wrong with the mitral valve and the mitral regurgitation was there, it would have been told to you during the before 6 months echocardiogram. It would be only when a mitral regurgitation produced by a mitral valve prolapse that would enlarge the left atrium, when the high pressures in the enlarged left atrium would produce shortness of breath and, maybe, rapid heart rate corresponding with a atrial arrhythmia. And it would have shown in the echocardiogram, if the left atrium was enlarged. My opinion is that your problem is not being produced by the mitral valve prolapse, at this moment, at least. However, if this a worrisome situation to you, then another echocardiogram should be done. Of course, if mitral valve is found on a bad shape, after carefully measuring the function, size, and grade of regurgitation, adding to the possible symptoms, it is only then when mitral valve should be surgically replaced. As for the stress side, indeed substantial amounts of stress have their clear effect on the heart, by putting it to a significant dynamic state and by producing adrenalin that acts directly or indirectly in your heart electrical and conduction system. There are a lot of natural means to reduce stress, starting from self-fighting of the stress to yoga or other methods. If this becomes problematic to you and affects your quality of life and work, I would recommend you a consult with a clinical psychologist regarding a course of sedatives to reduce it. I hope I was helpful. Best regards. Dr. Meriton