Like Mrs Bolton, I've had epilepsy (temporal lobe; there are over 40 types of the condition). And, like her, I've had published a book of my own, The Vital Spark, Fitting In With Epilepsy (the irony of 'fitting in' is deliberate).
First thing: please don't refer to a person as (an) epileptic. The condition and its symptoms are epileptic, not the person. This matters, for speaking of 'an epileptic' makes it seem the most important aspect of the person, when it isn't. Why not speak in the same way of 'a migrainic'? What about 'an influenzic'?
Epilepsy doesn't need to stop someone achieving, whatever authorities or others may say. Despite it, I have two degrees and used to be a languages lecturer - until I was banned from working in the UK. Why? My colleagues claimed I might bite them. This is just an example of the superstition hanging around epilepsy. Forget the evil spirits nonsense. There's much more - and it has to be cleared away.
Facts: you don't have to be brain-injured to have epilepsy. Most cases, like mine, have no known cause. You don't have to collapse and convulse. Most attacks are only just visible, if at all, like with me. And it's very common, but silence on the subject (not socially acceptable) means it's not mentioned, so people think it's rare.
We need books like this, and mine and others, to make the truth known. The level of discrimination against epilepsy is a national disgrace. Those with it are twice as likely as other disabled people to be unemployed. Did you know that people with epilepsy used to be exterminated, or at best sterilised, well into modern times? I refused to think about surgery, for it might have meant losing my speech. I still do translations! And there's much more: read this book, and others like it, especially if a diagnosis is recent. All of us need to know the truth about this condition. Anyone, at any age, can develop it at any time, and without knowing why. Possibly it's treatable - and possibly not. If not, you learn to live with it. I can't claim it's easy, but with time you do get used to it. Life has more important aspects than a condition that hits only sometimes.