my d.d is 11 months old and is already throwing herself on the floor hitting me,pulling her own hair when she is in a stress and once even started banging her head against the wall! is this normal and how do i stop it? she will go of at the slightest thing, such as not being able to close the door, was this moringings first one, i am a single mum so some advice would be great. my health visiter just told me to ignore her but am worried she may really hurt herself.