I have been recovered from TMS for a long time. I have read various approaches to this, But this was one experience with that.
I INITIALLY thought what you said here. I read Healing back Pain and started really investigating all of the stuff I generally blew off, and I began to be angry ...a lot and intensely. I recovered from my pain very quickly . However, the anger got so overwhelming I had to go get counseling because I was in danger of losing my job, friends, family and virtually on the edge of an altercation many times.
The counseling DID help with the anger without a return of symptoms
Now, the longer i have been doing this, I realized that the stuff I am consciously angry about is just 'surface' and TMS is really coming from my unconscious SO, I really have no idea what is going on down there...hence 'UNconscious anger. If consciously being angry banished TMS, all of my vicious politically minded friends would be pain free... but they tend to have the most pain. Ironic, huh?
Then I started really looking at myself from a different viewpoint. I started 'watching the thinker' like Eckhart Tolle teaches. I do my writing from that vantage point whenever i can get there... I need only spend my attention Speculating what MIGHT be going on down there to stay pain free. I suppose I'll never know what it is in detail until I'm dead sitting with God (assuming it even matters, or that I matter, or God cares LOL)
...and as I adopted that strategy, I have LOST interest in what I feel. It's usually passing through. "there is anger in me...right NOW"... "There is jealousy in me Right NOW"... these bad feelings are like weather, they come and go BUT the stuff that causes TMS is usually rooted much deeper (childhood) and tends to be static. I only need to remind myself about that when I feel some TMS coming on and it usually defuses it without a lot of messy 'feelings'
...and as I have lost interest in my moment to moment feelings, I have not only stayed pain free, but been happier in general.
Our culture has seemed to focus on getting in touch with our feelings.... For me that is like getting in touch with Rats in a dumpster. I know they are there. I know they are gross and everybody has them. I also have noticed that people who focus on them have a lot of anxiety and unhappiness. Life's too short. Not saying bottle it in, especially during the recovery portion, but once you know what they are, you don't need to give them every waking moment