Thanks for your question on Health Care Magic. I can understand your concern. By your history and description, possibility of anxiety related symptoms is more. But since it is left sided chest and arm event (shocking sensation), better to first rule out heart diseases. So get done ecg and 2d echo. If both these are normal then no need to worry for heart diseases. Stress and anxiety appear more likely in your case. So avoid stress and tension, be relax and calm. Consult psychiatrist and get done counselling sessions. Try to identify stressor in your life and start working on its solution. Don t worry, you will be alright. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.