Quay, I do that too. I dissociate if something is uncomfortable or difficult to deal with, and therapy usually is. In an attempt to stay present enough to keep up with what we're talking about, my fingernails start digging into my arm. I noticed that I was doing that with my former T, but he never seemed to notice it and I didn't discuss it with him. When I became aware of that habit, I started wearing rings and other jewelry to therapy so that my hands have something to fiddle with. I have mentioned to my current T that I do that, and what I do about it. I know that she noticed me playing with my bracelet constantly the last time I was there, but she didn't mention that. I am sure that she would say something if I were hurting myself in front of her.

The best thing I've found is a magnetic coil bracelet. I unwind it and wrap it around my hand and fingers, etc.