15 mo was walking fine and recently started crawling again when on the carpet and seems to be upsteady? Is this normal?

He has his wellness check next Thursday and I’m going to talk to his pediatrician then but I was just wondering if this was odd? He had been walking since 10 months and just recently started crawling on and off when he’s on the carpet. And has been a bit more tipsy. Idk maybe I’m over thinking it as a first time mom. Sorry

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