Although I do understand what you're talking about, I believe, it isn't the same thing.
I think what's happening with you is something most survivors of longterm trauma experience... disconnecting from the body and going into a survival mode. Holding in all that trauma for so long has some major effects on health (physically and otherwise). I've known survivors for become very ill before and when they begin processing trauma ...the body has to release all that trauma. And also, we learn to tense up muscles and that effects a lot of things as well.
I have known survivors to be diagnosed with "lupus" or "fibromyalgia" ... "chronic fatigue", etc ...and it's the body releasing toxins (physical, emotional, etc). It can be phusically too much if too much is processed at once. One thing that I've found is very important for emotional health and safety is the principle of returning to joy. (The joy of the Lord is our strength!) And it is scientifically proven that our brains can only process as much negative/trauma as the "size" or capacity of our joy. So....build that joy, sis! Joy builds emotional and spiritual integrity (strength). When things become overwhelming, press the pause button, step back and spend some time being refreshed in the Lord ...get out in the sunshine and hear the birds singing ...do a puzzle, take a long soak in the tub while listening to music ... things that bring joy. Then, you are more able to come back to those negatives and deal with them.
Not sure why I went that direction. I hope it's helpful to you or someone.
Thoracic Outlet Syndrome (TOS) is where the ribs compress around that nerve and artery bundle in the upper cheat just below the collar bones. It can happen by being born with an extra rib (or something like that) or repetitive motions ...or trauma (which is the case with me). With TOS it can cause nerve damage, circulation restriction, very tight pec muscles, rib, shoulder, arm, neck pain ...it can gravitate to the back... they all effect each other.
Tietze Syndrome and Costochondritis also both can be brought on by trauma. They involve rib and cartilage inflammation.
A good chiropractor and certain exercises can help...as well as prayer, of course!