I had issues with this as well. They dissipated as I reduced and eventually discontinued my medication. I'm not saying you should do that at all - But do talk with your doctor about the issue you're having with sexual arousal.
Here's an article from prevention.com that may help: http://www.prevention.com/cda/article/where-d-my-sex-drive-go/d7ef9c777f803110VgnVCM20000012281eac____/health/health.experts/mary.jane.minkin.md
Good luck to ya!
Warmest,
lauren