Started a bike ride today but couldn't finish. Went less than half a mile and my heart rate shot up to 180. Rate bounced around all over the place.Was not doing anything real strenuous just riding on some flat road. Fortunately I had my heart rate monitor on and was able to track this. Feel so disappointed,angry, and depressed. Thought that since I was on the tikosyn it would allow me to go back to doing the things I was doing before within reason. First Afib attack since I've been on the meds. The good thing is that my heart went back into regular rhythm. The bad thing is the not knowing when this will happen again. Puts my life back up in the air again.