I'm writing a novel, and I need some information about leukemia?

Okay so basically, a mysterious girl has leukemia but this is unknown to her class mates and I need help with some questions I have. (she is a teenager maybe 15 or 16) 1) What are the early signs and symptoms? 2) Is it possible for her to have good days when she is able to come to school and bad days when she... show more Okay so basically, a mysterious girl has leukemia but this is unknown to her class mates and I need help with some questions I have. (she is a teenager maybe 15 or 16)

1) What are the early signs and symptoms?
2) Is it possible for her to have good days when she is able to come to school and bad days when she is unable?
3) About how long will it be until she just can't physically come to school anymore?
4) What are the signs and symptoms in the later stages?
5) What sort of treatment will she undergo and how will this affect her coming to school?
6) Any other information will be helpful.

Thank you for any help :)
3 answers 3