DD1 is 5 in October and and seems to have reverted to having huge tantrums. We have tried everything we can think of and are making no progress whatsoever. They always seem to start because I have said no to something and can last up to an hr and a half. We have tried rewarding her on the days she doesn't have them, taking away treats such as cake, avoiding certain situations, talking to her about it etc but to no avail. She just seems to get overcome by anger and can't calm down, then when she does eventually stop it's like it never happened. Is she normal and has anyone got any suggestions?