OK, so both of the above are pretty silly -- but that's what I do when I have nothing but my imagination to go on, make stuff up. That's why I feel more at home when I have some details to work with: my wilder imaginings won't fit all those inconvenient facts so I'm forced to cut back to what's actually possible.

What I picture you wondering about, consciously or otherwise, is: if you did recall something and tell her, what would she do with it?
What do you mean, exactly? I've told her stuff (I would hope--as I've been there for 1.5 years!), and she just listens. She's never acted disbelieving, but I have this thing where I don't think I"ve really told her anything of importance, of anything BIG, you know? Just normal life stuff. Nothing I wouldn't be afraid to talk to anyone about--just my life story. I've had a rather boring, benign life. Why I am in therapy, I sometimes don't know.
I'm not telling you you shouldn't trust your T -- somehow I get the impression that you might not, I'm asking if there seems to be anything to that, and I guess I even slanted my two silly examples a bit in the sinister direction to address that.

I assume that in between times something is -- or you wouldn't have had anything to post here, for one thing. So does your mind go blank only when she asks you what's on your mind? Or the minute you see her? Or on your way to the office? What do you suppose would happen if you were to tell her -- in some detail -- what you're telling us?
My mind generally goes blank when I get there in her office. Unless I try really hard to hold onto some thoughts/feelings from the week before (I'll think over and over about it the night before, or re-read my journal entries, or jot some stuff down), I'm all like "I have nothing to say! Why am I here?!" And when she asks me "What are you thinking right now?" I generally am like...."Ummm...nothing?" I'm not sure what would happen if I talk to her about this stuff. Right now I am most concerned about her suggestion of me upping my meds. I JUST had the realization yesterday that I want her to believe in me, because I do not believe in myself. I don't believe I'll ever be happy, or ok, or anything but a loner the rest of my life. A part of me wants her to believe in my for me until I can, and that med comment makes me feel like she's exasperated at me. And I am scared to tell her this I know I should.
By any chance do you use considerations like that to censor what you're willing to say (or perhaps think)?
Probably. She once told me that I have a very strong censoring mechanism.
If you were to take the position that you didn't know whether or not you were afraid of life and being an adult -- what, if anything, would happen to remind you that yes, you are? I was thinking that that, whatever it might look like, might be a suitable subject to discuss in therapy.