So a while ago i began the quest with travis and saving vadim from the raiders in the brewery, but i noticed that 2 of the NPC's cant die and i cannot do the quest, and i read a forum where people said their own character became invincible, so i decided to load back before i entered the brewery. Now when i was fighting a few super mutants i realized that my character started regening health after it hit 0 so i basically became invincible. How the hell do i fix this? it honestly ruins the game if i cant die.