(((MUE))) that sounds SO much like me, knowing I'm feeling something but not knowing what that something is. One thing I worked on, w/T and on my own, was figuring out where in my body I felt it. That was REALLY hard for me at first because I don't like to feel things in my body. But it's gotten a little easier. It sounds like you are already there, somewhat, you know you have that butterflies in the pit of your stomach feeling for example.
The other thing was that my T gave me a list of emotions and I spent a lot of time reading it when I knew I was feeling something but I didn't know what. I did a lot of journaling, I'd write where in my body I felt it and then I'd look through this long 2-page list of emotions and try to pick the one that was closest to what I was feeling.
Anyway, that helped me in the beginning stages of that 'unthawing' but that was just a few months ago and I still have to work at it. I still can't cry, for example. Oh, every now and then a movie or something might make me cry but that's pretty rare. I know my T is kind of expecting me to cry as we go through trauma stuff, but I can't, it's just not there. I
wish I could cry, I just can't.