Hey,guys. I eeally need your idea or opinion about my friend. She is not very close to me, but still friend. She has been acting weird for a while now. Before I came to school, my close friend said she went up to the meeting room and count the tables and kneel down in front of it! That's creepy. Even the teacher said maybe there's a spirit in her body. Because my school indeed has many spirit.

More than that, she picked a leaf and bit it before searching something in the trashbin. For what? Nothing!

30 minutes ago, she went to her class and started singing, crying and talking alone at the back of class. She also imagined that she is playing a piano! 

My friends and I discussed that maybe she has a family problem. Her mom has a cancer and maybe friendship? I really dont get it. I dont know if she gone insane because of depression or what.

So guys, any idea?