Bad bite and more crooked teeth during braces? (Photos)

Good day, Hi. I'm 26 years of age and just got my braces about 4 months ago to correct my front teeth. I saw noticable changes within the 4 months of having them. However, i also noticed that my lower teeth became more croocked and i started to have a bad bite. My dentist is trying to remove spaces on my lower teeth. She put something to pull the teeth togther. Is it normal to experience bad bite and more croocked teeth? I'm starting to get worried. Thank you very much.

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