diagnosed hyperthyroidism 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 feel heart beating irregularly disorganized pattern traveled country last 4 weeks symptoms increased physical exertion alleviated rest
pulmonary embolism atrial fibrillation myocarditis acute pulmonary edema guillain-barré syndrome psvt unstable angina
Atrial fibrillation