Almost 5 & getting up 6x a night for no reason

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My daughter used to do this then stopped and it has been going on almost a month she wakes up and every time she opens her eyes she jumps up runs to our room n burst open the door and runs in. When we ask why is she up she says I don't know. We have tried punishing, screaming, being nice, quietly walking her back, warnings. Nothing is working. She misbehaving during the day n now this. I can't take it