Native American Curses/Myth

[Barracuda]

You could try looking up tales of the Hawaiian Mo'o. Mo'o was a giant lizard with shape-shifting powers the ancient Hawaiians looked to as a guardian water spirit. Mo'o could be fearsome if angered. Once angered, the only way to escape the wrath of the Mo'o was to create an impossible task for the Mo'o to complete (one Hawaiian hero of legend secretly drilled holes in a gourd, then asked the Mo'o to fill it with water.) Mo'o is associated with the gecko, and is said to be angered by those who crush gecko eggs. That's one possible hook. I know it's not native to South America, but there is no reason one couldn't have traveled there from Polynesia and made its home in the jungle.

[ArcticChicken]

Thanks guys, this has all been very helpful. My GM and I have decide to work up a list of possible curses, then he'll pick one without telling me which, 'cause my character doesn't know she's cursed yet.

I'd still welcome any more ideas anyone has.