<s>[INST] its hard to explain but it feels like my heart drops (like your stomach when your on a roller coaster ride) and i loose my breath, i was dignosed with anxiety disorder in 07' but it dont feel anything like that, what do you think it might be? should i be worried? [/INST] Thanks for your question on Healthcare Magic.I can understand your concern.In my opinion, we should first rule out heart diseases for your symptoms.So get done ecg, 2d echo and stress test (trade mill test).If all these are normal then no need to worry for heart diseases.You are already having anxiety. So worsening of stress and anxiety are more likely for your symptoms.So consult psychiatrist and get done counselling sessions. Try to identify stressor in your life and start working on its solution.You may need anxiolytic drugs too.Don't worry, you will be alright, but first rule out heart diseases.Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks. </s>