known issue heart valves severe chronic obstructive pulmonary disease copd experiencing shortness breath difficulty breathing significant way diabetes significantly overweight compared people height feel slightly dizzy lightheaded high blood pressure take medications treat high blood pressure known heart defect feel heart beating irregularly disorganized pattern traveled country last 4 weeks
atrial fibrillation pulmonary embolism psvt anemia guillain-barré syndrome myocarditis scombroid food poisoning acute dystonic reactions myasthenia gravis anaphylaxis sle chagas
Atrial fibrillation