I've noticed a pattern with Faith's lying, at least how it relates to what she says about other people. What Faith says is not usually completely baseless, but generally comes from a point of hyperbolic exaggeration to mislead the audience, either to redirect blame from her to someone else or to make the audience infer something more nefarious is going on than what is actually happening in reality. Attention-seeking individuals (and teenagers generally) often tell their stories to others in the worst possible terms in order to elicit the most sympathy.
In the case of Mr. Vickers, it's obvious how Faith's contentious relationship with her father gradually transformed from: "He's doing things I don't like" to "He's toxic" to finally "He's abusing me." For Chris, her father's disapproval of her relationship with him necessitated a creation of a lie in order for her to provide some basis to explain why Chris still kept in contact with her that removed the blame from Faith: that Chris was stalking her. Chris himself is a pretty weird dude, so this wasn't a lie outside the realm of possibilities. Finally, for Ralph, Faith's statement to Chris about how she feared Ralph lead Chris to infer that she was afraid of him retaliating against her for leaving him or becoming physically abusive, where in reality, it is more likely she was anxious about Ralph doing exactly what Ralph did with the sex tape.
In all of the above instances, Faith lied, but the character of the lie had a certain truthful component behind it. So when Faith talks about "trauma", I'm inclined to think that something may have happened, just not in the manner or severity as described by Faith.
Really, everything Faith does screams: "Please pay attention to me! Please give me emotional attention!" Unfortunately for her, she got all the way more attention than she bargained for, and none of the kind she wanted.
