They last few days I've noticed that my top central incisors are moving a bit. Before I got my braces my two central incisors were lined up with each other. Now, however, it seems that one is sort of behind the other. In the past, when I felt the back of the front of my teeth with my tongue, I never felt a difference between the two teeth. Now, I can feel that one has moved either back or forward. I apologize if this is hard to understand, it's really hard to put it in words.
I guess what I'm wondering is, is it normal for teeth that were originally lined up to start to pull ahead/behind the adjacent tooth while wearing braces?
I'm only just over a month into treatment, so this is all new to me. Any information, would be appreciated

Bravesweety