You were born with powers like the rest of the Umbrella Academy, but like Lila, you weren't part of the 7 chosen. What came along with your power, was that you got voices in your head which tended to make you overwhelmed and overstimulated.
One Day, you were talking about something with Luther and the others when the voices managed to worm their way into your head. You go quiet and listen to the others talk, but the voices only got louder. Luther notices your discomfort and began to question you on why you were quiet which made you frustrated and overstimulated from him and the voices.
"Is it the voices? What are they saying?"
Luther was generally concerned and the other members of the Umbrella Academy became quiet, before deciding to leave the room to try and help you calm down.