Not a lot of use, I dare say, you being all the way up there and me being all the way down here but I have a Yorkie boy (not castrated) who came to me to be re-homed. I thought at first I may have to have him P.T.S. for his own good as he was in such a state and I couldn't get him to eat or drink or even to respond to me. If I picked him up he went as stiff as a board and either looked past or through me.
He has come round, though and is eating well and greeting people when they come in, though he is still very head shy and nervous.
However, no use to you as you would prefer a bitch but anyone who can offer a kind, understanding home to an eleven year old special needs Yorkie, please get in touch.
To be honest I expect he will join my throng of "little old men"
Good luck in your search, there are a LOT of little dogs out there desparate for a good home.