Writing this response on my phone so apologies if it's kind of disjointed.

For some reason, this phone and these forums don't get along.
Thank you all so much for your responses so far in this thread. I feel like I'm being silly and acting like my usual neurotic, strung-out self, but I'm literally worried about this to the point of not sleeping at night. I fall asleep fine, but wake up with racing thoughts that keep me up for hours when I so acutely feel the lack of any sensation in my chest. It no longer hurts like the growth did a few months ago, but they also don't feel sensuous like they did.
I'm back to wondering if my body is up to its old tricks and overcoming what I'm putting into it. Not only has the breast sensation gone, but uncontrollable erections (like constant) have returned after being gone for six months. Spiro didn't work on me and so my doc put me on depo provera, and I'm wondering if that's also stopped working. She also has me on generic estradiol that I take under my tongue, and she's said that if my current treatment plan doesn't work, there aren't any other options open to me. No progesterone, no injectables, nothing. I'm super frustrated with that assessment.
And then there's the fact that I started taking prozac a month ago to treat the depression that the depo provera caused. Now I wonder if that's disrupting my HRT because the erections and loss of breast sensation started with the prozac. Anyone else have this experience? I see my doctor in three weeks and I'm going to be quite vocal about this concern.
And as if this whole thing can't get any more convoluted, I have genetics both on my side and totally against me breast-wise. Every woman on both sides of my family is quite well-endowed, all a D cup or higher. My sister is a C she's tall and skinny like I am). But then there's my mom, who's the runt of the family with her A cups. So I have no clue in the world how I'm going to turn out.
This is so aggravating!

I want so much to stop panicking already.