Our normally VERY good natured, calm baby has hit some kind of phase (please dear god) where he whines almost constantly. I mean, all the time he is not asleep or eating, he makes a loud whining sound. You can only distract him momentarily with toys, walks, etc., then it's back to the noise.

He is not hungry, not wet, and nothing is making him uncomfortable that I can tell. Is this because of a "wonder week" or something? Pre-teething? Growth spurt? He smiles through the whining but he won't stop the extremely grating sound!!!

HALP! DW is staying home with him right now and the last week has been pretty miserable. He is 18 weeks.