I'm a patient of "Mitral valve prolapse".Due to this is suffer from severe palpitations, shortness in breath, chest pain at occasional times. I suffer from very severe Anxiety or panic attacks , quite often , even on slightest of exertion or mental stress. I feel fast palpitations, fear, numbness, shaking of hands, dryness in throat and i get into "Anxiety" at any time, without a signal.