Good day
Your wisdom tooth seems impacted. Although it doesn't need infection or an abscess to cause pain, it doesn't mean it can't cause you issues. Partially impacted wisdom teeth, such as in your case, often lead to pericoronitis, which is inflammation of the gum surrounding the part of the tooth that is erupted or visible in the mouth. Pericoronitis can lead to severe pain, even difficulty with mouth opening. I would recommend taking it out.