Epilepsy and Anxiety

In the entirety of my life up until two years ago, I never had even remotely what could be considered anxiety disorder. It didn't really manifest until two years after having my first grand mal seizure (four years ago) and being diagnosed shortly thereafter. I didn't encounter my first anxiety attack (or panic attack) until I went and saw the remake of Evil Dead. I was very excited to see it because I'm such a huge fan of the originals and I've sort of always been on a quest to find a horror film that could actually scare me. But in the first 20 minutes I found myself in what I considered complete mental agony. I was freaking out for what seemed like no reason at all. Then I proceeded to get extremely nauseated, and being emetophobic it exacerbated the nausea. I wasn't calm until about four hours after that. I still can't watch anything horror oriented.
For the first few months I tried really hard to ignore it because I felt that if I put my mind to it, I could overcome it and find some sense of peace and move on. But, it continued and I had equally terrible moments down that bumby road.
After seeing my neurologist, she believed that it was attached to my seizure 'aura'. She perscribed me Clonazepam to assist me on those terrible days, which I am very glad that I have for a fallback. I began to agree with her when I realized these attacks correlated with my 'off' days.
However, I suppose the overall purpose of this post is a question to those who might be willing to postulate solutions or share similar dealings. With it impairing my ability to attend events or work effectively without medication, I find it detrimental to my life's current progress and I am eager to resolve it.

How does one overcome anxiety on a neurological level?