I am dealing with both the misery of afib (I have episode every 5 days or so and then it goes away, but makes me miserable with more weakness and fatigue but stops after about 30 hours) but adds to the misery I am experiencing from chemo drugs (iBrance and letrozole) for advanced breast cancer. Not a good situation to be in, that’s for sure. Am taking Xarelto and 12.5 metoprolol daily. More than 12.5 metoprolol lowers my blood pressure too much so I feel even weaker so Doctor keeps me on low dosage. I am 68. Obviously I am not in very good health, feeling miserable and scared, no quality of life. I might feel a little better tomorrow when afib stops, but not feeling very good these days and not optimistic. Wondering if anybody else is going through this. Thanks.