where'd my baby go?

in the last week, my baby turned into a snot.. suddenly she screams when she doesn't get her way. she screams in the morning because I'm not immediately there to get her. she screams when take away the diaper wipes that she's sucking on, she screams when I take away plastic bags from her. she screams basically whenever I take away something she wants. I'm hoping it's because maybe she's starting to teeth. hopefully my easy going baby will be back in a few days. for the first time in her life, she's a difficult child. for now, it's back to a strict schedule . . . got to make sure we at least get in those naps.