I have type 2 and every time i have my period my blood sugars spike to over 300 not sur what you can do but just to get her more active and to eat less. good luck!
I tend to have very low BS during my periods.
i am not a phycan , but the mom of a type one diabetic. i would suggest that you see a gynacolgist that specializes or has experince with young diabetics. i am sorry that i could not be of more helop.
i would also suggest that you ontact the online diabetes support team at Jdrf.org. they might be able to better get you an answer form someone else as they answer wuestions one on one.