I took Topamax for only 4 days. I ended up in the ER on Feb 22nd because I felt like I was going to pass out, getting dizzy, couldn't concentrate or think, numbness, rapid heart beat, shortness of breath and this was intensified by anxiety from all this stuff going on. I stopped taking it immediately. I have had episodes of these same side effects since then. I had these side effects last week and missed 3.5 days of work. I have been doing pretty good this week but today I had to leave work because the same side effects came back. I had to have someone come pick me up form the side of the interstate half way on my way home because it got so intense I could not drive. My doctors have done blood work and I am waiting for the results.