Dark Thoughts

SO, awhile back I used to have voices telling me to jack off 24/7, nullifying any real pleasure of the act; almost as a form of torture just to do it because they said so.
Well it's been some time and the harshness of these characters have disappeared; but not the quality of my own thoughts.
I've had many disturbing images in my head that lead me to feel unnerved about myself; ones that are pedo in nature. I don't know if it's a passing thing or if it's just me being miserable.
Not sure whether I should talk to someone about them because I'd rather just forget.