I think the first responce is right, every child tantrums does this mean nobody gives their child enough love and attention? my daughter throws a wobbler if she doesn't get any sweets when we go to the shop! i thought i needed to give my daughter more attention to make her stop throwing a tantrum but it made her worse. i dont even have to say anything but 'bedroom' and she puts her head down and stops straight away, once they learn all they get is sent away with no attention they soon grow out of it.
I'm sure you give you child enough love, it's just a stage they all go through.