See this is interesting. I actually get this feeling when DP tries to stimulate my n1pples. Such a feeling of sadness and melancholy. Its such a weird unnerving feeling. Especially when you are supposed to be DTD it really turns me off.
I dont get it while BF tho...dont know if its teh same thing (I am assuming not). I cant remember when it started happening but it got worse when I had my first.