My experience with delayed onset reaction

So I was reading through Sarno’s book on Healing Back Pain and came across a section on delayed-onset reaction. This totally applied to me and I have a perfect example of this happening recently. (This is all before I knew anything about TMS but I strongly suspected psychological causes). Right as summer was approaching, I was set to start a temporary summer job. I have done this job every summer and really look forward to it. I love working with the people, I love the environment, and honestly I needed the money really bad (You get the idea, I was motivated). I had been terribly concerned and afraid all year that I would not be able to do this job due to my constant back pain. As the time finally approached to start this job, I made up my mind that I was going to do my best and do the job anyways. I told myself I simply don’t have time to be in pain and (literally) can’t afford to deal with it right now. My attention was elsewhere.
What happened after 2-3 days in the job, the pain went down 80%. Totally manageable. Days after that, essentially the pain was essentially gone. After about a month of hard work, I decided to take a couple weeks off due to a change in the job duties that I was not interested in getting involved in. Just a day in, I felt horrible bored and depressed. I had nothing to do and I realized what meaning and purpose the work was giving me. So what happened immediately after? Yep. Pain returned with a vengeance. Continued until I went back to work, which the pain steadily declined again.

I was afraid that doing this job would worsen my symptoms. The nature of the job is very physically demanding.
What I found so astounding is the heavy kind of lifting I was able to do with no pain whatsoever. None. I had to lift and carry extremely heavy objects, bend over constantly, etc. It exhausted the hell out of me. But never did it trigger or bring on any pain! Again, I hadn't discovered TMS at this point, I was convinced without a doubt the psychological nature of my pain afterwards.

I just thought I’d share that. It’s amazing what our bodes can do when our minds force it to!