It is a very common thing most people get ringing in there ears an the epilepsy could be part off the cause if you start getting it young some off the drugs could be part off the cause they have that many side effects

Low magnesium levels can cause ringing the ears (tinnitus) and has also been shown to cause seizures. Research low magnesium levels and ringing in the ears... as well as low magnesium related to epileptic seizures

Not sure if this is the same but every fit I have in the daytime I have a loud high pitched sound in my ears and that is the last thing I remember before coming too. Thank you for sharing as it’s interesting to know I’m not the only one who gets this, take care x

Go to an ENT doctor and have it checked out. I did and he told me mine was from seizure activity.

I started to suffer from this after my brain injury/epilepsy diagnosis. The ringing seemed to sound in line with my heart beat (sounds a bit daft I know). I mentioned it to both my GP and Neurologist. They both said the cause was probably due to anxiety. I've got to admit they could be right. When I suffer from this problem I don't go onto having a seizure. Lately I've had the sound more or less daily and lasting for a few hours