Edit: Nah, she's fine, see above. Even so, don't do what she did.
Her timeline says she ate old rice. If it was old enough it might be a case of Bongkrekic Acid poisoning. Which can very easily be fatal.
chubbyemu has a video on it. Her symptoms are similar, though they're hardly unique. Even if it's not that, fermented carbohydrates can cause you some absolutely horrific damage, which is why you should never, ever consume them after they've been cooked for a day or two. The toxins they produce are heat-stable too, so freezing or re-cooking will do nothing to get rid of them.