Sounds just like normal terrible twos to me! No idea why it seems to you that your daughter is the only one going through it - I remember the kind of thing you describe being very usual among children that age when I had one. I have the impression that sometimes the children who have been most compliant are the same who do the most extreme non-compliance in other phases - maybe they just suddenly realise they can! Hopefully it won't last very long. I'd suggest lots of comfort (because that much emotion is scary to her), lots of choices where you can reasonably offer choices, and firm, reassuring boundaries concerning the things where you can't offer choices. This too shall pass...
