I am a 40 year old male, i was diagnosed with Atribe Fibrilation a year ago, i have been on 2.5mg of cardicor and between 6 and 12 mg of warfarin, my side effects have been that i am now very lethargic where i used to be a get up and go person, also i do get tired around 7pm but cannot get to sleep so i become overtired which has the same outcome no sleep. i have redder cheeks so i now look like a raving alcoholic,