diagnosed hyperthyroidism severe chronic obstructive pulmonary disease copd experiencing shortness breath difficulty breathing significant way high blood pressure take medications treat high blood pressure known heart defect feel heart beating fast racing irregularly missing beat feel palpitations feel heart beating irregularly disorganized pattern traveled country last 4 weeks symptoms increased physical exertion alleviated rest
myocarditis atrial fibrillation acute dystonic reactions myasthenia gravis guillain-barré syndrome psvt sle chagas
Atrial fibrillation