I hate to say it, but I agree with magz. I too know someone very close to me, that has suffered from uncontrollable emotional outbreaks, their entire life. It could be anything from severe anger, to uncontrollable crying, to the happiest person in the world. It can take anything from the smallest to a major thing to set this person off, and medication is what keeps it to a tolerable level. A hundred years ago or more, and this person would have been locked up in a nut house.