Our rescue currently has a breeder surrendered silky yorkie that has aggression issues. Kelly (Kelz-yt name) is fostering Tucker and has been making some progress with him. I will get in contact with her and see if she has some suggestions for you.
It could be your little Dolly's problems do stem from her physical conditions and her temperament will improve as her health improves.
God bless you for what your are doing!
__________________  ~Ruby, Reno, Razz, & Jack~ |