I did not want to be part of the select few who have had this experience, But I am and I am thankful. I did not feel well yesterday and my S7 Titanium alerted that I was in A-FIB, I checked 3 times to be sure, I headed to the ER where A-FIB was confirmed, If I would have tried to sleep it off, I would probably had a stroke. So Thank you AW.