I'm not sure about creamsweets but what I do think something is off is that

1. Eats a lot of sweets
2. Head hurts over the last 5 days
3. Lacks of eating
4. Doesn't eat with the family and eats alone
5. Cries herself to sleep
6. Doesn't wake up early as usual
7. Falling asleep on the train and missing a stop
8. Doesn't eat food as in food that are supposed to be good for you instead she eats junk food more
9. Doesn't finish her homework in time
10. Her body grows numb while carrying heavy things which includes her little baby sister

This is not okay if you ask me. Due to the problems she has changed her schedule is lacking alot.