diagnosed hyperthyroidism known issue heart valves experiencing shortness breath difficulty breathing significant way diabetes significantly overweight compared people height feel slightly dizzy lightheaded high blood pressure take medications treat high blood pressure heart attack angina chest pain feel heart beating fast racing irregularly missing beat feel palpitations traveled country last 4 weeks
psvt anemia myocarditis guillain-barré syndrome atrial fibrillation scombroid food poisoning acute dystonic reactions myasthenia gravis anaphylaxis sle chagas
Atrial fibrillation