Quoting Is that still my name?:" My daughter throws herself on the floor, or will hit me occasionally, but screams at the top of her lungs ... [snip!] ... that training has gone out the window... I need some tips on how to get my daughter to behave. Is that realistic at this age?"
yes its normal and i had that problem bad too. i tried everything! omgoodness. she used to hurt herself throwing herself back and bumping her head. so i spanked her for the first time and she never threw a tantrum like that again. if you dont wanna spank, thats cine. just thats what i did and it worked. i tried everything. but shell still complain and whine about stuff just no more throwing back, kicking, hitting, and screaming like that.
you might have good luck, so try the other stuff first. american baby and parenting.com have allot of good advice, it just didnt work for me.