Bugger, just been diagnosed after my second "episode" in four years.
Hopefully it will be manageable with drugs. It took me years to get mine diagnosed, I suffer from absence seizures, and it was only when I had a full blown seizure and got another neuro referral, and then read up on seizures and realised what was probably wrong with me (I'd had sufficient MRI's and CT's to rule out other nastier things). That enabled me to tell the neuro about the other symptoms and for her to get confirmation from a third party about things symptoms that I wasn't aware of.
Mine had got to the point where I might have a couple every week, and although the seizures weren't too bad the after effects were unpleasant, loss of speech, extreme tiredness and a migraine an hour later.
But, having had a diagnosis, treatment was then swift. The first medication that I was on didn't have any positive effect (some unpleasant side effects), but the next medication has worked. Not immediately, it took a little while for it to take effect, but it's very effective and has no side effects on me. Last week marked four months seizure free for me, at the beginning of the year I would have been happy with two weeks.
So, for me it has been treatable and hopefully it will be for you as well, don't get disheartened.
I stopped driving a couple of years ago anyway, because I didn't want to be in control of a motor vehicle if it happened.