I started doing it several years ago due to overwhelming stress and frustration. I call it an attack or an episode, too.
I have Borderline Traits, Depression, PTSD, and I think ADHD and ROCD but that was not diagnosed as I've stopped going to therapists and take Cymbalta. I also have digestive issues and joint pain/arthritis, something auto immune the doctor can't figure out.
Honestly, so much of this could simply be triggered by diet, but I don't have the discipline to control the diet- gluten free, non processed, etc... Also I have severe environmental allergies.
Also, nobody knows about the SH except those closest to me and on here. Of course I feel ashamed.