diagnosed hyperthyroidism severe chronic obstructive pulmonary disease copd experiencing shortness breath difficulty breathing significant way significantly overweight compared people height feel slightly dizzy lightheaded known heart defect feel heart beating fast racing irregularly missing beat feel palpitations traveled country last 4 weeks
atrial fibrillation psvt myocarditis scombroid food poisoning acute dystonic reactions anaphylaxis anemia pulmonary embolism
Atrial fibrillation