I have epilepsy.
I've had it since I was 15. I had two seizures in the space of a week. Due to no alcohol or drug use. After my second seizure I was put on medication for life.
How old are you?
My first suggestion is no booze or drugs of any kind till the Drs finish their investigation. I know its obvious but seizures are very dangerous for a multitude of reasons, a major risk with drugs that lower seizure threshold can have longer fit. This is crucial as a seizure beyond five minutes is very bad as you don't breath so you are starving the brain massively. Its worth while being 100% sober for a month or two, even a pint of beer can set some epileptics off. So be 100% sober.
It also makes it easier for the Drs to work out what causes your seizure without the influence of drink or drugs. You will agree you want your diagnosis to be extremely accurate.
Being tired can be a trigger for epilepsy, for me being extremly tired is the sole non drink or drug related cause of my seizures. As for my drink and drug use, I'm lucky that I can drink as much as I like, never had one during or after heavy drinking.
With regards to drugs, I used to do MDMA and, or Acid with a Valium or 2, and never had a seizure. However I would never do MDMA its just not worth the risk. Ketamine was absolutely fine. Never do cocaine as it crashes the sodium levels in the brain so is highly dangerous for an epileptic to do! Even if you don't have a seizure I would recommend not doing it, as it is possible you may have a lower than average seizure threshold without being epileptic..... I think you can wouldn't be sure! Basically uppers are obviously really risky, I used to do them but not anymore.
No downers have ever set me off.
So my message here is be sober till Drs finished their investigation as even if you are epileptic it is still to do drugs! But then you have to decide the risk afterwards of doing drugs.
If you have a another seizure any time soon they will almost certainly put you on a anticonvulsant. I really hope you are get sorted. Having seizures is really shit, let's be honest! But if you do its very possible anticonvulsants work 100% for you.
Ask any questions on here or PM I'm more than happy to answer them.
And yes I have pissed myself twice whilst having a seizure, never shat myself thank fuck!