Tooth pain one month after wisdom tooth extraction?

I had an upper wisdom tooth removed a little over a month ago. Ever since I've been able to eat normally again, I've noticed the tooth/teeth near the extraction site have been hurting when I drink anything cold. It is also a little uncomfortable to chew gum on that side or eat anything more solid, but not impossible due to pain. I do have a composite filling in one of those teeth that hurt maybe 1-2x a month for a day with cold liquids but then would go away. It's constant now and I'm worried.

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