Weird.. do you have any gear on that is optimized/requires rank 17 and had convert HP to something or other?
or did you reassign your stats? Lost a buff? etc.
I believe optimal level is the problem here, it might be a slight error with the optimization. For example wearing a Rank 25 gears that add 30 Hp, being rank 16 and under you get 1/2 (example) that's 15 Hp, and when you rank up to 17 somehow the formula messed up and give you 12 Hp, rank 18 - 13 Hp, rank 19 - 14 Hp, rank 20 - 15 hp, rank 21 - 18 Hp etc.
Regarding HP it's Marauder > Gladiator > Pugilist > Archer > Lancer > Thaumaturge = Conjurer. Lancer is not meant to take hit >_> Edited, Oct 14th 2010 5:40pm by Khornette