@Changeling, I do a combination of EFT and DBT - but the processing work I do is EFT. You might find this whole thread really useful:
What Does 'processing' Mean For You?
Reading your introduction post, I gather that you aren't working with a trauma therapist right now. I think, given the symptoms you are describing, you would really benefit from finding one. It's always hard to figure out; you could ask your primary care doc if they recommend anyone. You can also look up the Therapist Listings part of the magazine Psychology Today - they have an online searchable database that can be a good place to start making a list. It's easy to narrow down by which gender therapist would you feel comfortable with? What insurance (if any) do they need to take? What kind of commute are you able to do?
And then you'll have a list, and you start calling them or looking up their websites and finding out more about them. See if you can feel a "click". Listen to your gut.
Otherwise, you could also try adding meditation before bed. I have found it can decrease the severity of my night symptoms. I like the guided meditations by Jon Kabat-Zinn, I just use the free ones I can find on YouTube.
Back to the therapist: there are many different ways to treat trauma, and it might take some experimenting to find what you are comfortable with. If you are someone who relates very strongly physically to your trauma, and you don't want to have to talk much about it, you might like somatic therapy. If you are a "nose to the wheel, shoulder to the grindstone" type, you'll probably like Prolonged Exposure. EMDR is very effective for many people, but can be hard going; you'll want to be able to carve out time for self-care in addition to therapy. I like EFT because it has many of the benefits of EMDR but lets me better control the sections of the trauma that I'm working on.