Actually the bulimia thing is to justify the weak stamina and weak physical condition. The only reason I took this is because I have a clearer idea as to how it functions because I do see it in my every day life. The goal isn't to have drama, just to strongly limit her. Also the reason why it isn't so detailed is because of its lack of visibility by others. Her schizophrenia is what everyone notices ever, while bulimia is easily concealed. I thought that made sense. But I digress, I suppose it isn't required either. 

Now for the power stuff, I can take off the pain resistance as I really don't care about it. It was just the hero thing. That makes two personality/psyche strengths and weaknesses (Impulsive can take en entire slot along with being Not so smart, is that alright?) and two physical/combat strengths and weaknesses. She's quick but severely limited, high chakra but one or two well placed hits beat her. 

So Dumbed down is: Pros: She doesn't cower out of insanity, it's impossible to interrogate her without hardcore drugs or whatever, she's quick because she's light and I'll reduce from HUGE to above average chakra, but it should evolved as her KG evolves. 
Cons: Reckless/highly provocative/arrogant are the typical cons of personality, She isn't very intelligent and thus she often acts on impulse (similar to reckless but low intelligence), weak stamina and yeah her body's frail and gets thrown around easy. 

Altering reality in this case would be like, the mirrored field would actually be mirrored for about 20 seconds and this only applies on very strong Y users as you said. This is not Izanagi class power. Altering reality is also the act of making measure values useless when Z is used for advanced techniques for instance.But yeah, that's some high level stuff. 

X: Yes, she gets all the damage and all the effects, she just doesn't budge (unless of course her body is too damaged to move or her arm explodes or something). 

Z: Five meters? I'm okay with low flying. Also I can understand the difficulties of time scaling. It's never been an issue for me, personally, but it's perfectly acceptable. I suppose we can have chakra consumption be more and more powerful as she stays longer in the air. After all she needs to get back on the ground to land a hit with her current abilities. 

For the weakness with the strength. Well it's no where as strong as chakra enhanced strength with is C rank and barely is on par with Hard fist style. Sending more punches makes her tired faster because low stamina? 

Is everything alright with the solutions I've found?