ok this is embarrassing to talk about...
Well, my bf and I have been together for about 3 years and we have enjoyed a very satisfying and fun sex life for most of that time...

but over the past, maybe, 6 months i have had basically NO libido whatsoever...it's not that i don't have him sexually attractive or that I don't want to have sex...it's that I literally feel numb below the waist

we had a brief period of success a few months ago when I started communicating better during our times of intimacy about what I wanted, and I'm willing to do that everytime but I can't tell him anything to do if I can't feel anything! now it's like I'm just asexual

Nothing turns me on, I have tried to look at women-friendly porn and I'm just like "ok" like it's some kind of medical illustration. I have tried reading women-friendly "sexy" stories and it just doesn't do it for me. I have tried fantasizing, but it's like I don't have sexuality. If I do luckily somehow get a little excited, my body doesn't respond and it doesn't really go anywhere. My bf has a VERY active sex drive and we are very attracted to each other but he is so patient with me and will not do anything if I don't want to.
Maybe it would help if I wasn't so exhausted all the time, or if I had more (read:any) physical activity but the depression makes it hard to do those things...I wonder if it's side affects from birth control...I almost feel like it's something more since I dont have ANY fantasies that I can come up with...
I dont like this, I want to be happy and healthy and sexually active. I'm only 23 and have a great, committed, relationship!
What can I do?