Armory here: not like it'll really matter though.
From my experience of playing as a sub rogue for the past 55 levels, I've noticed something very annoying. As my level increases, so does my squishiness! I'm leveling in Blasted Lands at the moment and I'm just fighting generic Ashmane Boars around this place for a quest and, if I don't pull off an ambush + premed. I usually end up either (a) losing 75% of my health, or (b) popping defensive cd's, or (god forbid I don't fight anything with anything less then 100% health) (c) die.
I haven't really noticed it until now but at this point I just feel like a glass cannon.
Is this normal? Will I be better off once I get to a higher level?