question: I am 38 and had atrial fibrillation for the first time 10 days ago. It happened at night about an hour after I had a bout of extreme vomiting (so much so that the blood vessels under my eyes turned red, which had never happened before). I went to the ER and they gave me IV meds to control the rate, which returned to normal rhythm by the time I woke up the next morning. I followed up with a cardiologist and had normal stress test and echocardiogram. Is it possible or even likely that this could be a one time event cause by the extreme vomitting and not something I will have to worry about coming back?