severe chronic obstructive pulmonary disease copd experiencing shortness breath difficulty breathing significant way significantly overweight compared people height high blood pressure take medications treat high blood pressure heart attack angina chest pain known heart defect feel heart beating fast racing irregularly missing beat feel palpitations traveled country last 4 weeks symptoms increased physical exertion alleviated rest
myocarditis acute dystonic reactions anaphylaxis psvt sle atrial fibrillation chagas
Atrial fibrillation