Is it normal to have wiggly tooth with braces?

I'm afraid I may loose a tooth! I just woke up mid night with a feeling that my tooth is wiggling. Not as badly that it would come off right now but it is a bit lose and it's moving when I touch. I'm not going to sleep my cheeks pressing pillow again. So many problems with braces. I'm going to say my dentist not to tighten up my teeth so much in my next visit!

Is it normal to have wiggly tooth with braces?
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