Ok so I'm slow, I'm just seeing this now. To the OP, how is your baby doing now? Is she all "balanced" out now? I had also heard that spaying would calm down Uni.
Also when a customer comes in who has an unspayed dog she will quietly growl at them, and a lot of times, there will be a group of people come in and she will growl at some and not others. i will ask them if their dogs are boys or girls. If they say girls (I already know this by uni's behaviour) I ask are they spayed. the ones she growls at are not and the ones she doesn't growl at they are spayed. I always thought maybe it was a jealousy thing.