J+64: Sleeping issues

Recently I have had some trouble sleeping at night. I think I slept no more than 20minutes this night.
This has been going on for a week, and the teachers started noticing how weak I look!
So today, when I arrived for my Friday Chinese lesson, my teacher prepared a bed for me in the library and made me sleep two hours...
She then told me "to me, you are just like a daughter, I want to take good care of you" ; she had bought me my favorite food, and then called my main teacher to discuss about a way of making me go home when I don't feel good enough to stay all afternoon.
It was really nice of her, but I insisted, said I was all right and could stay at school.
I will probably consult a doctor next week, this can not go on.