My lovely dd was gorgeous with her new brother for the first month then the penny dropped he was staying. since then she has intermittently shown real anger particularly towards me via a gritted teeth and some hitting of me. Even when she asks to hold him the gritted teeth come out. He's only ten weeks so it's early days but I would welcome reassurance that this won't last and also any tips for dealing with it and helping her through it. Not sure how to react to her when she's like this...
I did post a few weeks ago and got some helpful responses but need a new injection of mumsnet wisdom to keep me relaxed about all this!