Thank you all.

Yeah, my Pdoc told me that the possible weight gain side effect is actually very minimal (she used the word neutral). She also mentioned it is a class B drug since I am hoping to get pregnant in the near future. I also take Lamictal and Lexapro which are class C, but have been told I can stay on those when pregnant because the possibility of side effects to the baby are low and the benefits outweigh the risks.

And you all did remind me about what the Pdoc mentioned about the dosage. She said that I only need to be on a low dose. Highest doses are reserved for schizophrenia and mid doses are for bipolar.

I just couldn't find much for it being used for BPD/impulsivity and while I trust my Pdoc, I still like to double check because it is my body.

If it really does work, I'll be excited. I don't know how it actually reduces the impulsiveness, but maybe it might reduce my thoughts? That would be a life-changer for me if it did that. The war in my head might actually stop.