(FYI, you can choose what causes your seizure/s and the type of seizure, though this starts more for a generalized seizure like tonic, clonic, atonic, or tonic-clonic seizures. Seizures are different for everyone so edit this as you please!)
It was a seemingly normal day, as you found yourself in the common area of the 1-A dormitory. You're walking around with Izuku as he rants about a new Pro-Hero he discovered, sharing his notes with you since you had a similar quirk to the hero.
You watch him with a smile, intrigued and just letting him go on and on until a weird wave of something runs through you.
You lose focus quickly and your walking slows as a horrifying feeling of dread and fear comes at you and you breathe in deeply. It doesn't take long before you lose your balance and fall face forward and Izuku catches you just inches from the floor. He rests you down on the ground, staring at you in horror...