My dd is throwing some awful tantrums recently and she’s now got into this habit of throwing herself down on the ground and repeatedly smacking her head off the floor and doing it quite forcefully over and over, she also does this with all the furniture as well. she nuts the arms of the sofas, baby gates, tables pretty much anything she can find that’s hard enough to hurt. She’s doing this hard enough to leave bruises all over her face and occasionally now we have cuts and bloody mouths because of this. No one else but me seems to see this as a cause for concern. I’m hoping someone can shed some light and tell me this is just some sort of phase she will grow out of before she seriously harms herself or if I need to keep bringing this up with hv