any one have a non-existent sex drive?

I've been with my boyfriend for about a year now and I went from having a low sex drive to no sex drive. I'm not sure what it is. I use to have a high sex drive and in the past 3 years it was slowly went to not having one at all. He keeps thinking it's him.

I have to keep telling him it's me and I fell like he's concerned that I'm just trying to make him feel better. I've switch BC in February hoping it would help and I think it might of made it worse. any suggestions?