Root Cause of Pain

I've been doing a lot of Mind-Body work recently to include EMDR, hypnotherapy and Reiki. I think I may have figured out the root cause of my TMS pains and wanted some direction on how best to go from here.

So ... About a year ago, I returned to my family home during a period of severe insomnia, a suspected H. pylori infection, and treatment with triple-therapy antibiotics. I felt extremely vulnerable—almost childlike—and slept in the room where my father, whom I experienced as a psychopath, slept. His long history of emotionally abusive and frightening behaviour seems to have triggered my nervous system to link bed/home → danger → fear → static pressure → pain.

Since then, any static pressure—sitting or lying down—triggers actual pain. Even though I now sleep in a new bed and room, I still live in the house and continue to experience these symptoms.

My father is currently in a care home, and carers have highlighted his mental instability. This reinforces my understanding that the pain is tied to past threat and fear, not any current physical danger.

I'm convinced that the TMS pains is a learned association and this realisation came to yesterday after a reiki session. Where do I go from here?