Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. Panic attacks always comes as an after effect of anxiety and apprehension. You did not mention anywhere that you are anxious. I certainly think you have anxiety disorder. Secondly, panic attacks due to anxiety, do have certain incidents which creates this panic attacks. You did not mention anything like that. Do you have any? The doctors who treated you and took brain scan and other tests, could have surely advised you about the next step you should take, and in all probability, should be to consult a psychiatrist. Please consult a clinical psychologist for correct diagnosis and further treatment. If you require more of my help in this aspect, 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 further. Hope this answers your query. Available for further clarifications. Good luck.