My daughter used to be way worse. I'm pretty sure at least half of her tantrums are because she has a really sore tummy. As soon as she farts, her tantrum basically ends. Do you think this girl has any food allergies? When the doctor (for a variety of reasons) suggested taking the gluten out of her diet, she started sleeping through the night, and her tantrums went from ALL DAY, to a manageable amount.