diagnosed hyperthyroidism known issue heart valves experiencing shortness breath difficulty breathing significant way significantly overweight compared people height feel slightly dizzy lightheaded 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
atrial fibrillation myocarditis pulmonary embolism psvt anemia guillain-barré syndrome scombroid food poisoning acute dystonic reactions myasthenia gravis anaphylaxis sle chagas
Atrial fibrillation