Symptoms of Quiet BPD They often want to please people at cost to themselves, and may withdraw from others when upset rather than working things out. They may engage in "splitting" behavior" (black-and-white thinking or swinging from one extreme to another, with little provocation).

While someone with high-functioning BPD may feel intense anger suddenly, their frustration may display as one appearing tired and in need of some time alone. High-functioning BPD tends to leave a person feeling chronic emptiness, uncertainty about their identity, insecurity, and dissatisfaction with themself.

Borderline personality disorder is one of the most painful mental illnesses since individuals struggling with this disorder are constantly trying to cope with volatile and overwhelming emotions.