I've had a theory that recurring dreams are not actually recurring dreams. There have been times when I have a dream and I wake up thinking I've had the same dream before like maybe months ago, a year ago, or years ago. I have no proof whether it's the case, because a majority of dreams I have I'll only remember for about a week, unless it was very strange or sticks out in some way.
I want to say I've had them, but I'm not sure if I really have.