Thursday morning, Logan (12m) nursed just fine. He went to daycare and then that evening he screamed when I tried to nurse him. Friday morning he nursed, but less than normal. Back to daycare and then wouldn't nurse that night. Refused to nurse all day yesterday, though not much crying - just turned his head away when I offered. Wouldn't nurse this morning either. Is this a nursing strike? Or is he just done? If it's a strike, any tips on encouraging him back, besides just continuing to offer?