[quote=Laufey]
I actually had to look up what a Kossith was meant to be.I'll admit I haven't read your character sheet yet, so are you a follower of the Qun, or not?
[/quote]

Kathleen was born an orphan, her bloodline comes from a group of Kossith that landed in the southern Korcari Wilds in -410 Ancient. Thus, she descends from the survivors of that colony. 

However, since she was never brought up in the Qun she does not hold their beliefs, someone born a Kossith does not automatically become a Qunari, it being a religion. 

Anyway, that's why she's a giantess, and her background explains most of it. (though it only hints at the Kossith connection.)