Since october I have been having episodes. The first one started with my vision going white, feeling very faint, and then for approx thirty seconds my heart raced. I had a few more incidents similar and then they started changing somewhat. One I just felt like I was going to pass out and felt confused with minimal increased heart rate. My doctor ordered alot of tests and two weeks ago I underwent an EP study on my heart. They said I had av-node re-entry and did an ablation to fix my heart. Okay so I also had an eeg wich showed a possible left temporal lobe focus and a right paracentral focus. Since right before my heart procedure and since I have had episodes where I lost my speech, literally unable to speak for approx thirty seconds or so. My neurologist put me on Keppra 500mg daily to start with. Any feed back would be greatly appreciated as this all very new and confusing for me. Oh also experiencing ringing in my ears atleast once per day, lasts from minutes to an hour sometimes.