How to tell partner you don't have an interest in kissing?

My girlfriend and I have always taken things very slow, but she'll always ask why we don't kiss more; I always just tell her that I'm anxious and just want to take things slow, but I'm starting to realize that, I think I just don't like kissing. When I think back to all the previous times I've kissed someone it's never felt like anything. Like if anything the only thing it felt like was anxiety and I was extremelyyy self aware of everything. Even when we've kissed it's felt the same, everytime I feel extremely anxious and hyper aware of everything, and I'm doing it more for her than I.

How should I go about telling her this without hurting her feelings?