It took a lot of reflection, but I believe I know what I was feeling Thursday night and why I was feeling that way.
The emotion I was experiencing was loneliness. That isn't an emotion I've had during a spanking before, and it took me a while to process it.
Almost always when Steve is spanking me we are connected in some way. Usually I am over his lap or knee. Even when I am kneeling in the stuffed chair or laying over the bed, he has his hand on me or touches me frequently.
When he had me stand and was spanking me with the paddle there was no contact between us, only the pain of the strokes. That was when I had an intense moment of loneliness. It took a lengthy snuggling session and two bouts of love-making to eradicate it, but I feel reconnected to Steve now.
There was nothing wrong with the punishment. I still feel that Steve handled it exactly the way he should have. At least now I will be able to identify the emotion sooner and better express my feelings and needs to Steve.
By the way, Happy Father's Day to all the dads out there.