Everything have a first.
Our first day at a new school or work. Our first date, our first time cooking etc. Sometimes they held the best memories, but most of the times it's the opposite case.
Although definitely when she was young Que is sure she had been sick, she just couldn't remember. But ever since she was old enough she'd never been sick. Perhaps few cuts and bruises, headaches and some stomach cramps, especially when she her great aunt decided to visit, but it was nothing serious. So she was not use to it, or even could tell how it feels.
That was why when she first felt uncomfortable the night she first came to this abandoned old house in the middle of no where, the night their home was attack but she brushed it off as just body ache. She never knew what started as body neusea would spiral into this.
Probably triggered by her fall from the stairs of the hidden path and then the punches she'd threw at the punch bag.