Both of my girls started teething what all the books would say is "early". He might not be teething, but his teeth might be shifting, either way it's ok. Try getting a couple of pacifer's that he likes now, and keep a couple of them in the freezer.When he get's crankier than normal, take one out and give it to him. The coolness will help sooth him. Also listen to your mom, she must know something, you made it ok, right?? Also don't go right by any "baby books" to the "T" because you will go CRAZY!! To me those books where a guideline, but not every kid is the same.