wisdom teeth

So I've been getting my wisdom tooth for about 6 months now and it's still not fully down yet. I was at the dentist a few months ago and she said it looked fine and since it's causing no pain then we can leave it be. But sometimes I notice when I tense my cheek and rub it against my tooth it's a little sore and feeling it with my finger it does feel a little puffy on the gum. Is this normal? As far as toothache or anything I have no pain it's just when it gets touched