My DD has changed significantly since my son was born. She cries at everything, she cries if I tell her off, she cries if she doesn't get her way. She cries every night and refuses to sleep in the day. She is a fussy eater and doesn't eat a wide spectrum of food. Some days she doesn't even want her weetabix for breakfast.
I had just started to discipline her by putting her in the cot when she misbehaves, when she jumped out of it and hurt herself, so that's now gone. She's even broken my laptop and generally just says 'no' to every request.
So what is going on? What can I do to stop it? Please help.