diagnosed hyperthyroidism known issue heart valves severe chronic obstructive pulmonary disease copd experiencing shortness breath difficulty breathing significant way diabetes high blood pressure take medications treat high blood pressure heart attack angina chest pain feel heart beating fast racing irregularly missing beat feel palpitations feel heart beating irregularly disorganized pattern traveled country last 4 weeks
pulmonary embolism atrial fibrillation myocarditis guillain-barré syndrome psvt panic attack
Atrial fibrillation