Why does my tooth feel uncomfortable 3 weeks after crown placement?

I got a crown placed about three weeks ago. I can chew soft things just fine but anything crunchy or chewy causes a weird feeling, like pushing on a bruise. It doesn't register as pain, just a discomfort. I just want to be able to chew with my normal strength as this crown is located on my primary chewing side. I wasn't numb during the crown placement so I could make sure my bite felt completely normal. What else could be wrong? Do I still need to have my bite adjusted?