yeah some bosses can hit an upward of 50 in one shot
on a full moon a werewolf spawns which so far no player has ever soloed, not even the highest level'd player could do it
i think i was about 8 life when i could fight thieves, but only one at a time
if you can, try and find a high level player to help you out with inala's quests, at the end you get the bind wounds skill which increases your health regen
what's your name btw maui so i can add to op