It sounds like her initial entrance into your room and the time it takes for her to get under your bed, are the hardest parts for her, as if seeing you causes her panic.
Often igs have very bad reactions to their humans' change of wardrobe. Are you wearing any new colors? Your story makes it seem like it's you she's suddenly having problems with. Her vertical compression makes her look bigger, and afik they don't do that to inaminate objects, except for new stuffed toys if she needs to hate right now.
"but she has a change in the closet that's home base."
I can't figure out exactly what the change is, but the change, if it's concurrent with her new personality, is the probable cause. She seems to be taking it a bit far, but IMO the change has triggered this. Give her a couple of months to get used to it, and keep it the same at all times.
You could re-arrange her territory to the exact condition it was in before the change, but there is no guarantee.
Above all, never let her bite you again. I've had some rescue igs who stalked me, and one really got me on my face. She was so incredibly fast. IMO still pick her up, tub her, and sit with her, but you might have to throw a towel over her to not get bitten.
After years of taking in strays and de-homed igs, I figured out that totally ignoring tail whippings is the best way to handle them. I look at them as involuntary acts, like sneezing. If you don't back off or flinch, she will eventually give up on them. But the few times I got whipped on my head by an adult, it felt just like getting clocked with a broomstick. Never let her get into a position where she can whip your face.