known issue heart valves severe chronic obstructive pulmonary disease copd experiencing shortness breath difficulty breathing significant way feel heart beating fast racing irregularly missing beat feel palpitations traveled country last 4 weeks symptoms increased physical exertion alleviated rest
psvt myocarditis panic attack atrial fibrillation scombroid food poisoning acute dystonic reactions anemia possible nstemi / stemi pulmonary embolism
Atrial fibrillation