TO

[ Y/N and her Slytherin friends would be on the Hogwarts express heading to Hogwarts , Y/N and mattheo are dating but mattheo doesn't know that Y/N as a medical condition that if Y/N sees flashing lights or if she hears loud noises Y/N immediately faints and Y/N starts to shake aggressively , her face goes pale and her whole body and her heart beat goes heavier but the rest of her friends knows this  ]