DT2 (3.4) has started waking up in the night, in a real state. It's only been the last 4 nights, but she's obviously really distressed. We have never (and I mean never - sleeping has always been my DTs top skill) had any bedtime issues before, but now she says "I don't want to go to bed" over and over at bedtime, and then takes a much longer time to settle than ever before. She comes out of her room to find us, and gets upset when we put her back to bed. The last two nights, she has woken up (once at 2.20am, once at about 6 (don't usually get up til 7.30ish)) shouting for me really loudly. When I go into her room she doesn't realise I'm there and keeps shouting. When I get to her, she's shaking and needs a lot of reassurance. Is this night terrors? What can I do about it? Any experiences or suggestions would be brilliant.