diagnosed hyperthyroidism known issue heart valves severe chronic obstructive pulmonary disease copd 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 feel heart beating irregularly disorganized pattern traveled country last 4 weeks symptoms increased physical exertion alleviated rest
atrial fibrillation psvt scombroid food poisoning
Atrial fibrillation