diagnosed hyperthyroidism severe chronic obstructive pulmonary disease copd diabetes feel slightly dizzy lightheaded heart attack angina chest pain known heart defect 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 unstable angina stable angina anemia scombroid food poisoning panic attack
Atrial fibrillation