This is not about me so sorry if i am not too specific, but i am really worried for a friend. 
I dont know if she ha schizophrenia but she has had halucinations for a while, mainly shadow people while going to sleep, and she has also had big headaches very frequently. Well she has lately got worse and he has started seeing them during the day and sometimes she gets scared and sees things trying to get her phone or pc while using it. She is a normal clever person for the rest, but i am scared bc i care about here and since brains are weird complex things i really want to know what can i do to help her or what advices i could give her.
She doesnt use drugs and only smoled weed occasionally in the past, she has a fucked sleep schedule but it cant just be that. Please i need every bit of advice i can get.
Thank you