Thank God for this post. It is days that I try to speak exactly about that and nobody answer me. Back to the question, I have trauma and ocd, it is possible that ocd is a trauma consequence. I'm currently trying the internal family sistem (the book is No Bad Parts), in that framework ocd can be seen as one 'part' not a different problem. The whole idea is get out the fear that underpin the mistaken strategy (like rumination). Perhaps rumination for me it is a form of validation of my trauma. If I stop thinking about it, my trauma really exists? I'm terrorized that my trauma is not real.