Dear doctor:t am almost 22 year old male patient with free medical history of any diseases,no drugs and surgery, i take all my vaccination,and no family history of any choronic diseases except diabets and hypertension for my ankle and my grandma, and right side hypertrophy for my granmother...my cheif complaint" recently for one month ago i start feel tightness on my chest without pain and it seem like my chest cant hold my lung inside it with a liite pressur to my heart,these feeling start with heavy excersion like football game, swiming... and last for 20-25 min,although i am athlete and i am practise on regular manner for ten year at least,please just if you can help i will aprociate that. thank you