I've been experiencing something very similar.. but not quite exactly the same. I have been with my boyfriend for 3 years and 8 months. We used to have sex when we were younger and then decided that we needed to wait until we were married as we got a little older and I suppose more mature? I'm not quite sure, but we mutually decided that thats what was best for us, and what God wanted us to do. Ultimately though, I think it's pretty much because we had a pregnancy scare once and definitely do not want that to happen because I'm 18 and he's 19. I mean we also knew that at the time we were MUCH too young to be having sex. Well now still have sex, just not traditional sex ya know, and I used to love it. Anyways, no need for details but now I am scared to do anything sexual. I'm not sure why. It just happened about 2 days ago. I'm scared to do anything, almost like I'm scared of it inducing a panic attack or it will make me hallucinate, or that he is going to change suddenly while we are together. Any ideas on how to resolve that problem? I would like to relate those experiences to relaxation and stress relieving, not the other way around.