Anyone have (or had) a toddler, roughly 15 to 18 months old, cry CONSTANTLY? Some days, it seems like that's all Nathan does. He'll go after things that he knows he's not allowed to have or touch, and then cry when we tell him no for the millionth time. Or he'll want whatever Katie is playing with and cries because she won't give it to him (not that we blame her; he has to learn to share, too). It's like all day, one thing after another, he cries about. And then other days, when Katie's at school, he'll play with toys (and with us) and be completely happy and not cry at all.