Hi silver...from what I understand SI is just one issue that ppl with BPD may face.
Other symptoms that ppl with BPD suffer with are:
Fears of abandonment ..real or imagined.
I know that mood swings are an issue, but very rapid within minutes.
Identity disturbances.. with sense of self or unstable self image.
implusivity such as sex, substance abuse, reckless driving.
recurrent suicidal behavior, threats or gestures or si
anxiety
chronic feelings of emptiness
innappropriate, intense anger that's constant.
stress related paranoid ideation or severe dissociative symptoms.
I started this with some of my own issues, but then used the site for some help b/c of my own memory issues.
If you look on the site here it explains it real well.
Hope that helped
Take care
Eva