I've also recently noticed that the microphone is capturing a lot of breathing. I believe this indicates that I need to adjust my microphone position, particularly my boom. I actually have a mirror on my desktop facing me so I can monitor or microphone position, and while it looks like my microphone is in the right place I still pick up the breathing sounds. I don't know if the breathing sounds are related to the "him" occurrence.
I'm fairly convinced that the current user file I have is corrupt, but I've been using it for less than two weeks. I think it may be time to resort to my saved pristine user, or scratch the pristine user and retrain a new user.