Shedding or not?

[Mara]

Ok my friend and i got a bp and a rtb about 1 1/2 weeks ago. the bp has looked like she is going to start shedding since we got her. I was looking at her a couple days ago and her eyes were turning that misty blue/white color so i thought she was going to start within a couple days.
she hasnt come out of her humidity box for a while so i was leaving her alone. but today she came out and was in her dry hide and her eyes dont look blue/white and she still hasnt shed.
ive heard that they can get some type of illness that makes it look as though they are going to shed when they are in fact not shedding. so that has made me a little concerned. im not really sure what to do about this because i know that she wasnt taken care of properly in the home she was in before.