Is it normal that i count how many times i use the bathroom in a day?

Ever since I was little, I'd count how many times I went to the bathroom. It was always sort of like a game to see if I was going to the bathroom more one day than the other; I still do this. I told my sister and she died of laughter. I don't think I'm the only person that does this, but I thought this was quite normal. What do you think?