Sex (or lack of) and depression.

My boyfriend and I have been together for 2 years. I have always suffered with depression, but in the last ten months or so, I have COMPLETLY lost my sex drive. Like we have literally done in mauve 5 times. Most of the time just thinking about sex makes me extremely anxious, and besides that, I just have NO drive. My boyfriend has been amazing through this but he's definitely getting pretty frustrated. I miss having a normal sex life too. It is definitely taking its tole on our relationship. Can anyone give me any suggestions to increase my sex drive?