Hi cinema. This is really a strange phenomenon. I can speak for most of the HD guys here that, after sex, we have an emotional high that carries us for days. I've never heard of the opposite situation, like yours. Have you tried doing some research on the internet about this? Maybe on WebMD you might be able to go to Dr. Louann Cole Weston's message boards, which are here.

I wish you the best of luck.

Hairdog