I don't know if it's a matter of detachment. I think the ground is moving under your feet and your are having trouble maintaining your balance. You know you need safe ground but don't know where to step, especially not knowing if there's a life line that can be thrown your way if you need it.
I was hoping you could find an IC familiar with PPD (lifeline) in your area. They can ask some pretty simple questions and give you their impression, even if your W isn't involved in the beginning. They could also guide you in helping her get treatment as needed.
An IC familiar with diagnosing and treating PPD is the way to go. I think it's good that your W asked for a referral to woman C but that doesn't mean she will be effective with PPD.
A phone consult may be really helpful for you if there is no one in your area.
What could it hurt? You may find out I'm completely off-base or you may get some really good insight into what you're facing.
Either way, you've gotten a bit of solid ground under your feet.
What were your impressions after reading the book?
Me 57/H 58 M36 S 2.5yrs R 12/13
Let me give up the need to know why things happen as they do. I will never know and constant wondering is constant suffering. Caroline Myss