Wow. First, you are not the asshole, that so-called therapist is the asshole! In fact, she's the whole ass! OMG, that's terrible. I'm so sorry you went through that.
I'm sure many more people will weight in about this encounter with the t, and with saying no or not saying no, and putting yourself in danger, but I can address the issue of having comorbid PTSD and ADHD. Per my T, it's "a thing," i.e., there are reasons why it's hard to distinguish ADHD from PTSD that developed because of childhood abuse. Given what we know about how early trauma affects the developing brain, it's sort of a which came first, the chicken or the egg, the PTSD or the ADHD, kind of thing.
For me, I didn't get diagnosed (dx) with ADHD until I was in my mid-30s and had my depression and PTSD well under control. Then, I could clearly articulate that the difficulty with concentration, memory, and initiating, staying with and completing tasks was not due to depression, or being distracted by flashbacks, rumination or dissociation.
Now that my PTSD has reared its ugly head again, the best way I can describe the difference is how I
feel inside, although on the outside the behavior can look the same. My ADHD doesn't make me stare blankly at my office wall for 8 hours, that's being dissociated. I don't really know where the time goes. I feel extremely guilty (with both ADHD & PTSD) and usually very sad about my past re: PTSD symptoms. I might stare out my window for an hour daydreaming due to my ADHD, and although I feel guilty, I'm not ruminating on my past or feeling anxious about anything (usually.) I'm just taking my brain off the hook and having a happy little daydream. With PTSD and anxiety I may feel very agitated inside due to scary memories; with ADHD I may be restless because I'm either excited about something or super bored with myself. ADHD "makes" me procrastinate; PTSD and depression "cause" me to crawl into bed with the covers over my head and feel like a terrible person. They feel very different.
They definitely interact and play off each other, however. I struggle at work and at home with just getting shit done, and that makes me feel terrible and can lead to a downward spiral. The good thing is, in my opinion (and I've worked with children and adults with disabilities, including PTSD and ADHD, for over15 years) the strategies for dealing with one transfer to the other.
Grounding and mindfulness for PTSD can help with ADHD, for example. You don't have to do quiet meditation to be mindful. Mindfulness can be very active. Getting grounded in the present moment to help with rumination and/or dissociation can also help interrupt (or at least recover from) an ADHD daydream. Physical activity, even just doing 10 jumping jacks (if you can) or standing up and stretching can help alleviate the physiological symptoms of anxiety and dysregulation of PTSD, as well as discharge hyperactive energy or "clear the cobwebs" out of ADHD spaciness. Exercise on a regular basis helps with mood, sleep, memory, and attention, benefiting both.
This is my favorite resource for ADHD, and I recommend it for anyone who is disorganized for any reason, regardless of dx (for example, I've recommended it to a lot of creative, artistic people, who just don't do the "file it alphabetically in a drawer" kind of thing.)
ADD-Friendly Ways to Organize Your Life, 2nd ed., by Dr. Kathleen Nadeau (a psychologist specializing in ADHD), and Judith Kolberg (a professional organizer.) The original edition of the book changed my life, and I am looking forward to reading the second edition since so much has changed. My office still looks like a mess, but I know where everything is, lol!
I hope this was helpful. Good luck,
@el user.