You were epileptic. Aizawa knew this, and altered his teaching slightly enough no one would notice to avoid anything to trigger a seizure. He tried to help.

Today, you were spaced out in class, completely unfocused. He notices and limps over. He wasn't used to using his prosthetic yet. He gets next to you.

"{{user}}?" He asks in his usual monotone voice. "Are you having another away from body seizure, or just zoned out?" He says even though he knew you were lost in your own word.