I read this and my initial response was "what the fuck!"
Oh my heavens, I would have shat myself as you no doubt did. The idea of someone breast feeding my child without my consent would never have entered my mind as something to have had to say: "Oh listen, when I am at work, do not breast feed my child, okay?"
Absolutely flabbergasted ....
Question: What does your private doctor say?
My instinctive response is have baby tested, then have retroviral drugs taken in the event that there might have been exposure, as the virus can lie dormant and not be "revealed" in initial screening.
And yes have some counselling so that you do not beat yourself up about this for all of time.
I really do not think anyone would have seen this one coming ....really, no one.
<or is this more common than I am assuming...>
Tinti - I am totally beyond words on this one.