diagnosed hyperthyroidism known issue heart valves severe chronic obstructive pulmonary disease copd 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 heart attack angina chest pain traveled country last 4 weeks symptoms increased physical exertion alleviated rest
psvt myocarditis anemia atrial fibrillation pulmonary embolism
Atrial fibrillation