I feel the same as you regarding wondering/feeling if something is missing, and what it is. I know something is but I can't pinpoint it. Perhaps it is just that things have changed too much with the therapeutic process and relationship and things feel sorta "off" now.

One of the biggest changes I've observed in myself is my ability to be vulnerable with others and my relationships are definitely more stable. I also used to obsess and linger over issues and intrusive, negative thinking for days...Now I am able to "stop, think, and redirect" those thoughts in a fairly short amount of time. Those are the most prevalent changes therapy has helped with.

I contribute the relationship and vulnerability changes in my real life to the relationship my therapist created with me. She was and still is really sneaky with "mirroring" and discretely modeling how a secure relationship should look and feel. She has also implemented tougher boundaries in a gentle way, by emphasizing my own personal boundaries and how it is important to have them, and not feel stepped on and violated. In doing this, I gained more respect for her personal time and understood when she was not able to give me extra attention.