<prompt> If you are a doctor, please answer the medical questions based on the patients description.when i do any exercise my chest hurts i feel like i cant breath right feel like i will faint if i dont sit down and dont move and start sweating a lot when i sart feeling better my heart beats faster and chest hurts more i start to cough and everything is ok again  <response>: Thanks for your question on Chat Doctor. I can understand your concern. In my opinion, we should first rule out heart diseases like heart failure and coronary artery disease CAD. Youre all symptoms like chest pain on exertion, sweating, rapid heart rate, breathlessness etc. are commonly seen with heart diseases. So immediately consult cardiologist and get done 1. ECG 2. 2d echo 3. Stress test 4. Coronary angiography if required. You will need cardiac supportive Chat Doctor. Dont worry, you will be alright with all these. First diagnose yourself and then start appropriate treatment. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks. 