Can they fire me over this?

I don't really know if it is petty just tiresome, and i can't go to my supervisor well i could maybe today I am dressed very cute, if i may say so myself and i guess i yawned one to many times or something and for 5 seconds a little part of my side was showing now normally i would just fix it and get over it but one of the other supervisors saw it and (it's the same one that always says something about my clothes no one else does and the thing is she is not even my supervisor never has been so becuz she has already said something to me about it then now she wants to point me but even my sup who was right there said that i was wearing two shirts and she didn't see anything and nobody else said anything either sooo.... I don't know they never gave me that raise,that cae with the training cl i took almost 4months ago now they have had two more training cles come and go (and nothing) i ask my project manager why he never transferred me when they first trained us, he never gave me an answer except to say that now i need my points lower which is excuse me bs but anywaz on top of that i asked for a schedule change last month and they only move me to part time cuz they don't have anything else they tell me just last week another girl ask for the same type of change and she got it so she is still working full time and i only have part time which is not so bad but you can only work like that for so long before they take your benefits you know so if i complain will i lose the job (which would be worse) or maybe make it better what is your opinion???