Beads, welcome to the forums. I am glad you are learning to heal from the experience of having a BPD mother. OFten the realization is the first step toward healing.
You may wish to read specifically about BPD mothers. (You can find books on e-tailers.)
Growing up with one is frightening as pwBPD are often volatile and abusive. One day you can be loved and praised, and the next hour verbally abused and physically beaten.
https://bpdfamily.com/content/Dr-Jekyll-and-Mr-HydeBPD is often found with NPD and they call this co-morbidity.
Click around and see the topics and lesson for people with BPD parents.
I am sure you are relieved that there are now answers. Anxiety and insomnia are common in those with parents and personality disorders, and you can find relief. It's like having C-PTSD, or complex PTSD from being abused in childhood over a long period of time.
Maybe this link will be of help.
https://bpdfamily.com/surviving_abuse/01.htmAgain, welcome to the forum.