So, try to relax and to enjoy and
your partner must support you and
he must understand your condition (I know it's not easy and
simple being in that condition), so together you can find a way to improve your sex life and to enjoy and be passionate.
I am telling you this because I had the same problem and it was very, very unpleasent, but I tried to solve it so it can be better for me and my partner.
Hope you will find a way to feel more passionate. Just relax, that's the best start.