Video game seizure question...?

So, yesterday, I was playing Batman Arkham Origins and had a seizure while going through the Mad Hatter side quest. I'm looking for likely reasons as to why this could have occurred.

So this was my first seizure ever. I'm 20 right now. In the past, for several years I would say, I've had this issue where sometimes, when I'm playing any video game, I'll jerk/spasm. But it's never gotten worse than that. In fact, I've jerked/spasmed in other occasions not related to computers, too - sometimes, if I'm taking a midterm or final at my college, I'll jerk/spasm (basically my body tenses/jumps, it's like a time jump almost, one second I was walking, the other I've jerked and almost fallen down). Sometimes it happens when I don't get enough sleep or when I'm really tired - I went to Texas to attend a wedding this past summer, and maybe 2 days after I arrived, I was jerking/spasming a lot and as a result running into furniture in the hotel. So, on to what happened yesterday.

Supposedly, when I was seizing, my eyes were wide open and I was all clenched up. I also bit the sides of my tongue at some point, drawing blood. I regained 'consciousness' so to say about 5-10 minutes later (I'd say probably closer to 5), and I had some short term memory loss for about a half hour afterwards, then I was fine. Got checked out of the hospital, went home, was a bit sore and a wee bit tired, but was otherwise fine. I don't know why this happened now of all moments, and why I've never had a problem before other than the jerking/spasming. Has anyone else had this issue of jerking/spasming then one day, bam! seizure?