Please don't think I was implying that there's anything 'wrong' with what you're doing or that it's hurting you in anyway. I just posted what I was thinking.
I think we all probably get things stuck in our minds and become a bit obsessed at times. I did that recently with an actors name, I knew the movie they were in but couldn't recall the name. I couldnt let it go until I figured it out. So I understand your need to do this.