My six month old DD is normally very sweet and cheerful but I've noticed recently that when something isn't going her way (especially when a toy frustrates her or I have to take something away from her), she goes completely crazy. She goes bright red, screams, and has tears streaming down her little face. It doesn't take too long to console her, but the outbursts are so sudden and severe - they do feel like tantrums. Anyone else experienced this? Any tips on how to deal with it?