Could Phlavix, Betaloc, Or Xarelto Be Causing My Severe And Frequent Atrial Fibrillation Episodes, Headaches, And Increased Heart Rate?

I have had mild AFib all my life with no problems and no medication. 6 months ago, my new doctor presribed phlavix and betaloc, since then I have been hospitalised once, Phlavix changed to Xarelto and episodes are now severe and frequent (with major headaches), lasting up to 5 hours and heart rate increasing from 62 to 130. I have no energy. I am female aged 71, do not smoke, drink very little, I am slim, non diabetic, no other health problems. I feel like I was fine before these tablets, are they necessary and why?