@nvmvoidrayz Let's call it lv45 for the sake of this.
Ok, so a lv59/45 Te/Fi Female Newman has a base HP of 455 (ie. no Unit bonuses, no HP Up Skills, no HP Augments). If you have minimal HP Augments or Unit stats, then your HP looks to be fine. Even with a full powered Deband Toughness active, that would bump you up to only around 570HP.