I'm male, but I sort of agree with haphazard - whereas my R problems have been ongoing for a very VERY long time, and MB has been pretty much my only outlet for decades (yes, Decades), there have been times when I just didn't feel like it. Sometimes that was for an extended time. I just don't worry when that happens - it means my desire is low for some reason, usually mild depression, but it always comes back. Sounds like, in your current sitch, MB makes you uncomfortable, so do it if you want, don't if you don't, but don't feel like a loser about it. Nature will give you nice dreams eventually anyway...
