Our generally happy boy has been extremely upset during the nights, waking several times. And yesterday (12/6) he revealed that he’s been grouchy because he’s been growing a tooth! Yup, that’s right. Our four-and-a-half-month-old boy has a tooth already. He’s trying to keep up with his brother, apparently. Riley, too, had a tooth at four-and-a-half months. Having his hands stuffed in his mouth constantly was not really a clue to us because he’s been stuffing his mouth as long as he’s had control over those little appendages.