Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. From the description it is also clear that you have obsessive thoughts. Of course, these are part of anxiety and panic attacks. Your ER had confirmed that your heart is alright and you need to believe him. Second option is go for rigorous exercise schedule and strict diet pattern. Those exercises keep yourself fit and you start believing that fit body cannot have heart problems. Exercise also gets away with acidity which is also another reason for your chest discomfort. You should undergo psychotherapy treatment for your anxiety and panick attacks. Please post a direct question to me in this website. Make sure that you include every minute details possible. I shall prescribe some psychotherapy techniques which should help you cure your condition. Hope this answers your query. Available for further clarifications. Good luck.