Having doubts about having my wisdom teeth (tooth) removed!?

I have a wisdom tooth that has been coming in the past year. Not till recently have I been having problems with it. Only half of it is showing and when I sleep at night my cheek presses into the wisdom tooth causing me to chew on it out of frustration of the tooth being there. I'm half asleep when I am doing this. I actually cut up the inside of my cheek real bad and caused canker sores, swelling, sore throat etc. now that it is healing my wisdom tooth is no longer bothering me, but when I go to sleep I can't stand the feeling of the tooth being there and bothering my cheek so I start biting it again, half asleep. The one side of the tooth is exposed and the back of it. I don't know where the other half of the tooth is since most of the first half is showing. Does this sound like a normal wisdom tooth to you? maybe I should just have the blasted thing removed?