I'm glad you are feeling better. I've had a-fib occurrences over the past 10yr, with two admissions to hospital to get the HR stabilized. I've had stress tests and no problems found. I take lo-dose aspirin, but your doc obvioiusly thinks you need something stronger. Try not to worry about it, but keep in touch with your cardiologist. Allowing you to stay 30 days in a-fib with no treatment********** What were they thinking about?