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