I can't find any data on frequency of AFIB. My attack started at 10 p.m. and it would be 6 heart beats, skip, 2 heart beats, skip, 2 heart beats, skip, 2 heart beats, skip, (3 times) and then back to 6 heart beats. It is too irritating to allow sleep and it is now 5 a.m.. I'm exhausted. I have taken a Metoprolol and my heart rate is about 65 and have taken a total of 3 aspirin during the 7 hour attack. Since food usually causes the attack I have also taken 3 doses of Pepto Bismol. Nothing is helping this time and I can't find anything on the web about when I should be concerned and seek medical help. Can someone please help?