Sex of any kind has never felt good with my husband.

I find myself so extremely bored when we do it and I’ve always had to fake my moaning.

Whether its penetration or oral ,I have to purposefully think of a scenario that turns me on for me to orgasm because the actual physical aspect doesn’t do it for me. It’s not that he’s small or anything , it just doesn’t feel good and doesn’t live up to the expectation I had of what sex was going to be like.

Why is this happening ?is it common?