Random seizure

I was hanging out with my boyfriend and brother in law 2 days ago and out of no where my boyfriend had a seizure. He's never had one before. Can anyone tell me if this has happened to them before?

yea that happened to one of my friends kids his was from lack of sleep an if your really stressed out he needs to go to a doctor asap tho they sould give him some pills that mite help so that he wont have that anymore but if he hasnt gone to the yet then he really needs to I hope this helped