I wonder whether anyone else has experience of this. If I have a long period of AF - say more than 4 or 5 hours it will often clear with a 1 or at most 2 second feeling of intense dizziness and faintness. Pounding in the ears, loss of vision as in about to faint, loss of balance, all very frightening. But after 1 or2 seconds it clears and I'm fine, AF gone and I'm ready to go. It is as if something has cleared. For several years I have had mild tinnitus and this is much more pronounced since these 'dizzy' episodes. Any ideas? Or does anyone else get the same thing.