My dd is having the most horrendous tantrums over literally everything at the moment but especially about having her nappy changed, going in her pushchair and going in her highchair. She makes the loudest screaming noise which is quite horrible to hear and goes stiff as a board or tries to get away. She makes the noise at other times too for no apparent reason. Are these sort of tantrums normal? I thought she'd be a bit young for it yet. Also if anyone has and tips for changing her nappy while she's like this I would very much appreciate it. 95% of the time she's happy and delightful and then she just switches!