Instant death?

[Farael]

Originally Posted by Legolas

From what happened, we can tell that when she chose mortality, her body started the mortal course of aging from her current physical state - not from where she'd be physically had she been mortal all along.

Can we? I can't recall anything saying that she aged as well. She outlived Aragon and he lived a long life (even for a descendent of the Numenoreans) and I'm not sure whether it says she died of old age or it just does not say.