From the Highly Sensitive Person:
Emotionally, Highly Sensitive People (HSP) are mainly seen as shy, introverted and socially inhibited (or can be socially extroverted). They are often acutely aware of other's emotions. Sensitive people learn early in life to mask their wonderful attributes of sensitivity, intuition and creativity.
Physically, HSPs may have low tolerance to noise, glaring lights, strong odors, clutter and/or chaos. They tend to have more body awareness of themselves and know instinctually when the environment they are in is not working for them.
Socially, introverted HSP may feel like misfits. They actually enjoy their own company and are totally comfortable being alone. Both introverted and socially extroverted HSP often find they need time alone to recover after social interactions.
Psychologically, HSPs compensate for their sensitivity by either protecting themselves by being alone too much, or, by trying to be 'normal' or sociable which then over-stimulates them into stress.
Work and career is particularly challenging for HSPs. They are often overlooked for promotions even though they are usually the most conscientious employees. They are excellent project oriented employees because they are responsible and thorough in their work.
Relationships can be difficult. In relationships they may be confronted with their unresolved personal issues. They can however, offer their partner the gifts of their intuitive insights.
Culturally, HSPs do not fit the tough, stoic and outgoing ideals of modern society and what is portrayed in the entertainment media.
Childhood wounds have a more devastating effect on HSPs. It is important for them to heal their past hurts because they cannot just forget them and go on in denial.
Spiritually, sensitive people have a greater capacity for inner searching. This is one of their greatest blessings.
Nutritionally, HSPs may need more simplicity in their diet. They may be vitally aware of the effects of food on the health of their body and their emotional stability.
HSP students work differently from others. They pick up on the subtle things, learning better this way than when overaroused. If an HSP student is not contributing much to a discussion, it does not necessarily mean they do not understand or are too shy. HSPs often process things better in their heads, or they may be over-aroused. This can be the reason for their not contributing. HSPs are usually very conscientious but underperform when being watched. This also applies to work situations; HSPs can be great employees—good with details, thoughtful and loyal, but they do tend to work best when conditions are quiet and calm. Because HSPs perform less well when being watched, they may be overlooked for a promotion. HSPs tend to socialize less with others, often preferring to process experiences quietly by themselves
Linehan theorizes that borderlines are born with an innate biological tendency to react more intensely to lower levels of stress than others and to take longer to recover. They peak "higher" emotionally on less provocation and take longer coming down.
An invalidating environment usually has a high significance on self-control and self-reliance. Possible difficulties in these areas are not acknowledged and it is implied that problem solving should be easy given proper motivation. Any failure on the part of the child to perform to the expected standard is therefore ascribed to lack of motivation or some other negative characteristic of her character.
Again, in order for a borderline personality to develop, an invalidating environment with and a highly sensitive person must be present. I fit this. My therapist says that my environment wasn't just invalidating, but annihilating.