I understand that this is quite a common phenomena, not only amongst gay men, but men in general. I find it difficult to fully empathise with, as I've never experienced it; for me, sex has always been extremely satisfying in every aspect. the sense that usually follows is a warm, weightless glow, like being borne up on an amber wave. Though I have been with other men who express this sense of being somehow soiled by the act. It is something that needs to be worked through, one way or the other, as Rareboy and others have suggested.

