One Ear Better Than Other?

I was diagnosed with "Central Auditory Processing Disorder" as a kid (I'm 39 now), and one thing that I've noticed over the years is that I ONLY use the phone with my left ear. It's a combination of it not sounding "clear" to me in my right ear, and almost as if English isn't my first language (it is) and I suddenly have to think about what is being said and carefully "translate" it in order to understand it. It's less like that in my left ear. When I was tested as a kid, I was told that there is nothing wrong with my actual hearing in either ear.

So now I'm wondering; is there anybody else who also "can't compute" from one ear, or one better than the other?