I'm having similar issues, and I'm on nothing. I'm a bit of an addict, so I guess it's more masterbation. Sex helps me relax, kinda disassociate a bit, and I prefer taking care of it myself. I get too emotional otherwise. Doesn't matter what I do, vibrator, sex toys, shower, doesn't happen. Maybe I've done it so much I'm desensitized to it...I don't know.