Did you know that some 4 year olds get loose teeth? I thought it was a little early, but, there is is! He didn't fall, or bang his mouth on anything... but a loose tooth certainly explains his strange eating behavior over the past few days.
And as you can see, it really doesn't bother him, although I've noticed him investigating with his tongue quite a bit... I guess the Tooth Fairy will be making a stop here tonight!