You sound exactly like me. Except most of the time when I do it, I don't intend to do it. It just happens out of nervousness/excitement. I know it's not easy (my coworker is not always the easiest to talk to because she could easily chew me up and spit me out), but if your apology is sincere and in your heart you know you didn't mean to hurt anyone, then that is all that should matter.

And even if that doesn't help, know there is somebody here who understands you and is here for you