Welcome to HCM! I have gone through your problem and there is a possibility of anxiety and panic attack. It is less likely related to heart disease. Your ECG was normal apart from sinus tachycardia, which is just a finding when one is anxious. I don t think that ECHO and other tests will have anything abnormal in it. The doctor had given you right medicine, they will be very helpful. From my clinical experince I can say that these symptoms are more likely to increase if not given proper treatment and may lead to severe anxiety, which may require long term managment. you are not worried about these symptoms doesn t undermine their significance....they reflect some kind of chemical disturbance, getting such attacks more frequently can pose stress to heart, may lead to increase in Blood pressure. I m not trying to scare you but one should not unnecesesray increase/ neglect it. taking medication will help you and later you can stop them. I don t know if you have any stressor currently which is leading to this problem... inderal may cause some lowering in blood pressure , sometimes anxiety /palpitation also, but largely is helpful. clonotril is good anti anxiety medicine but may lead to sedation to some people even in low dosees. Clonotril may cause addiction if taken for long time, especially without prescription. I have seen paroxetine 25 mg alone working very nicely in such problem, with clonotril 0.25 mg when there is panic attack. If still you want to avoid medicine then please do breathing / relaxation exercises regularly, three to five times a day, this will help in reducing / stopping the anxiety. Hope the reply is useful Feel free to ask more questions. Dr. Manisha Gopal