im 19 years old and 230lbs. i used to be in very good physical shape playing football and baseball with cardio everyday. i now smoke cigerettes and dont eat a healthy diet for the past year and a half. when i try to work out or do any physical activity my heart beats so fast im scared of having a heart attack and have to stop. it feels like it is jumping out of my chest and it has never happened in the past when i did 50 times the excercise during football. any suggestion to what it could be and what i can do to improve my health so i can get back to normal?
Hi, I think you know better what's wrong with you. Smoking is not good by any means. Unhealthy diet weight gain no exercise causes deconditioning of heart and leads to increase beating.  To improve stop smoking immediately. Have healthy food habits and start cardio exercise gradually increasing way. Go to a cardiologist for routine cardiac examination with ECG, Echocardiography If required 24 hrs holder monitoring. Get your Hemoglobin and thyroid check. Hope I have answered your query. Let me know if I can assist you further. 