Yes, but I don't obsess over it. That subtle thought process isn't all bad though. It influences me to quietly examine the risks in activities I choose to do. For example, I went fifteen months after my last seizure before reinstating my driver's license, even though by law in my state I could have re-applied after being 6 months seizure-free. It's not just the possibility of a breakthrough seizure I consider; it's also the degree of impairment caused by the meds.

Even so, if there's the option, I let someone else drive. It also makes me reconsider water recreation, power tool usage, heights, or anything else that could potentially expose myself or others to harm. Necessity is the mother of invention. Safety first. Realistically, it's necessary for me to invent ways to compensate and to manage these risks for everyone's benefit.

I was diagnosed at 62 y/o, so there was a before and after. Realization of the loss of my independence was immediate. I continue to try and claw back as much of it as possible, but only to a degree, since my "carefree" days are over. I know I have to accept it and adapt.

Yes, I still worry about that but not obsess over it. Last seizure was in 2018.

Yes. There are people with epilepsy , who were seizure free for many yrs. Then from out of the blue the have what is call a BreakThrough Seizure.
Some may get their seizure back under controlled and some may struggle getting them 100% controlled.

Not personally but I have heard of it being a thing. Personally I find the less you think about it as a whole the better it is to manage.