My 7 mt dd has been like this for a few weeks nw tho and is getting worst. All i do is either tell her no firmly or just ignore her. She does settle staight away when i put the dummy in her mouth.
She goes mad at most things. Being dressed, taking summit out her hands and with her toys.
She just screams and starts thrashing her arms and legs about widly and stiffins her body and she is quite strong too.
She started smiling at 5 weeks too but dont really do it that much at all. She is hard to get to smile and laugh. And when she does smile she is mostly does at the tv rather then people.