It's a tooth...in Matthew's mouth! It's freaking sharp, but I'm sure that's why he's been whining so much for the past two days...it's been driving me nuts, but to know that there is a reason behind it makes it all worthwhile (I think)! I can't really see it in there, but I sure can feel it! None for our Hailey yet...that's okay...all in due time! Just wanted to document it!