diagnosed hyperthyroidism known issue heart valves severe chronic obstructive pulmonary disease copd experiencing shortness breath difficulty breathing significant way diabetes significantly overweight compared people height heart attack angina chest pain feel heart beating fast racing irregularly missing beat feel palpitations traveled country last 4 weeks symptoms increased physical exertion alleviated rest
pulmonary embolism psvt myocarditis panic attack scombroid food poisoning acute dystonic reactions atrial fibrillation unstable angina
Atrial fibrillation