Severe pain is synonymous with an impacted wisdom tooth due to the pushing motion of the affected tooth against the surrounding area. Toothaches can also be expected if part of the tooth is decayed.
The gums around the impacted tooth will be swollen and tender due to the pressure from the tooth underneath the gum line.
A weird, unpleasant taste that does not go away can signify a decayed impacted tooth.
The pain from the impacted tooth can radiate to the jaw, neck, and the whole head area.
Bad breath can stem from the bacteria buildup surrounding the impacted tooth, or can also be the result of tooth decay.