Hi and welcome to Yorki talk.
I just became a new member myself.
I was wondering the same thing. My little guy is only 3 lbs, & he has a mild liver shunt. I give him Lactulose 2x's a day.
I was hoping someone else on here may have had a similar issue.
I really want him neutered
but worried about anesthesia.
In terms of personality change any dog I have had that I had neutered or spayed just seemed a little sweeter disposition a little more mellow but no bad change in any way
Good Luck to your baby Im sure she will do fine
Wendy and Jax