I had something similar to this recently. I was doing some learning about pain with a Dom. I was performing tasks. The more I got into it the more I got into a drowsy aroused state where I felt 'high' off of it. I was completely out of it. But when we moved on to something else that wasn't pleasant, I began to come around. I found that I was not happy. Then I wanted to cry. I was so down. I was miserable. I felt like I had failed horribly. It was really awful. And it took me some time to get over it. I was so sad. I just remember I wanted to cry.