Well, sometimes I feel a little pop in my steering wheel while turning and when I back up and turn the wheel to the left, I hear a rubbing sound on that side really quick then it goes away. But nothing is rubbing. So I wonder if that has something to do with it.
I doubt that is what you're hearing. If it bothers you, you can easily fix it. I think that's part of what they adjust when they do an alignment though... I think adjusting the tie rod ends like that can affect your toe-in a little bit. I could be wrong though. Either way, it's not anything you need to lose sleep over.