My daughter seems to have episodes. She has had 2 episodes. There was 18 months between them. The mental health nurse seemed to think this was a good sign and that something was working. I put it down to therapy. Is BPD episodic with intervals of calm?
Yeah, I've found that to be true for my own (adult) son, who was diagnosed with BPD in April of 2013. He would be dysregulated, suicidal, or addicted to drugs with periods of calm, happiness and sobriety. It was a really stressful roller-coaster ride with him until his diagnosis, treatment and subsequent recovery process... .For the last 2 years he has been clean and sober, and his BPD (and all other diagnoses--except for a lower lever Social Anxiety that is still lingering) are really in remission.
How is your daughter doing, today, JustAMum? It's awful and heartbreaking when our kids are suffering, and we don't know what to do about it... .But, your daughter is being treated and understood, and there is hope for the future for her, since she is being monitored at such a young age.
My own son was 36 when he was finally diagnosed with BPD, with the proper Therapists and Therapies being put in place. He lost 20 years to the fact that nobody understood what was going on with him and causing his troubles, starting around 16 (though he was born with ADD, and that wasn't caught till he was 20, and that fact probably sparked the BPD which probably kicked in around 16).
I'm happy that your daughter is having the chance of a younger working out of her troubles; please hang in there