Sexual concerns are common and treatable, and they rarely improve from silence. People come in for differences in desire, pain, arousal or orgasm, questions about orientation and identity, sexual trauma, or a sex life that changed with age and circumstance. Many psychiatric medications also affect sexual health, and as a psychiatrist and sex therapist, I don’t consider your sexual well-being an acceptable cost of treatment.
Much of what people carry as personal failure turns out to be more specific, and more workable, than they originally thought. Once it has a name, it usually has a way forward. You can say as much or as little as you like, and we’ll find the words from there. If you’d like a partner to join at some point, that’s always an option.