Hi, Dsr &

I'm so sorry for the stress and trauma your family is going through with your son. It is not unusual for teenagers not to be diagnosed with BPD since their personalities are still being formed, but if he does have the traits related to BPD then what you can find on this site will certainly help you. Here is a good start:
What can a parent do? (for parents of pwBPD)What actually is going on with him? What brought you here today? We have many parents of children with BPD on this site that will understand exactly what you are going through and dealing with, and there really are good tools and techniques you can use to help make things better. And lots of information that can explain just how your son's mind works, and help you better understand him. Please tell us more, so we can guide you better, Dsr