My situation is very similar to yours. I, too, have an attachment to my primary doctor. Definitely not as intense as I do with L, but an attachment nevertheless. I see my PCP at least every 6 weeks. Not because I need to, but for support. I really only need to see her every 3 months for my diabetes. She knows about my mental health issues mostly because she has access to my Pdoc's files (they are part of the same clinic). It's good for her to know about my mental health because it does affect my physical health: the meds I take, self care, etc.
My abuse growing up was not physical or sexual. It was emotional neglect. It can be worse than the other two because you can't prove or show emotional abuse. But regardless, abuse is abuse.
Maybe just tell her you'd like to discuss things that are bothering you because you feel like she's a trusted person in your life.
Thank you for posting on my thread too!