Too embarrassed to let my boyfriend eat me out?

I've always been insecure and knowing he'd be up close with my vagina just makes me uncomfortable. I do want him to do it and he wants to too, but I just can't get around that. I'm worried about how it looks, how it smells, how it tastes, if I missed a spot shaving, if I queef, all of that. We have a very good sex life and he'll finger me, but I guess my limit is him going down on me. How can I get rid of this insecurity?