Hi Cedar,
I found out about the DNA testing when speaking with my epi I asked my epi to do a DNA test on me to find what AED would help me the most. Drs. make a lot of money giving their patients perscriptions and I ask myself the question:"Is this why they don't do DNA tests?" It could also be the neuro/epi that you see and their location. I go to a University Medical School and Hospital where they are teaching and learning more each day to staff and students and this could be why I was able to get DNA testing done.
When you see your neuro. again I would request a DNA test be done to see if you are on the best AED's for your sz. Here's wishing you well and May God Bless You!

Sue