I'm having a feeling my friend is using me

every day it is the same for me...when I get to my second class in school one of my "friends" wants me to go with them to the office so she can check her blood sugar...and then we have to go back to her locker and we have to wait on my sister...when she gets there I can go do what ever I want to...then we go to our third class she wants me to carry her books to her locker at the end of class and I really don't want to do it.

Ur friend might be using u.

She's wants you to help her out. in this case it sounds like she's starting to use you but not fully

She is totally using u but give her one more chance talk to her about it!!!