Does anyone else question if the way you hear yourself is the same way everyone else hears you?

Does anyone else question if the way you hear yourself is the same way everyone else hears you? Today I had to make a very important phone call. I was on hold for 45 minutes. I was finally connected to someone. But the whole conversation was very odd. It was like I heard myself saying one thing but her replies did not match up with what I was asking her. She was being nice and sincere. I heard myself and it was clear but it was like she did not hear me the same way I heard myself. I never feel self-confident when it comes to my speech. I always question if people really understand me. This has happened so often in my life I'm just very flustered.