I CAN'T FEEL MYSELF CUM!

My boyfriend and I have a great sex life and I love having sex with him but I never feel myself cum. After he's finished or just pulling out to put on another condom he looks down there and tells me whether I came or not. The times I do , I NEVER feel it! But when I masturbate I feel everything and know when I'm about to come or when I'm coming...But I only stay on my clit during masturbation, and I've done this nearly 3 times a week for a good year before I started having sex. Do you think I've over stimulated my clit and that's all my body feels now?