Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. You are already anxious and has experienced panic attacks. From your experience, you must have learned how they affect you. I can say that your current anxiety could easily be related to substance abuse. You should stop worrying about what you are experiencing now. Learn to enjoy it. Divert yourself towards your education and career. Remember, Idle mind is devils workshop. Researches proves that medicines alone cannot cure anxiety disorder. Along with medicine you should practice psychotherapy techniques to streamline your life style and meditation and yoga techniques to calm your mind, body, streamline your metabolism and thinking style. Please consult a psychologist. If you still need my help, please describe the whole problem in detail and post a direct question to me. I shall definitely help you with psychotherapy techniques to over come your problems. Hope this answers your query. Available for further clarifications. Good luck.