I don't know about the Tyron thermography but I once worked in a clinic where we used a similar device, and frankly I stopped using it. Ask to see what the readout is, when done on your healthy, and hopefully subluxation free chiropractor!
Fibromyalgia, meaning you have at least half a dozen active trigger points in your body. When you press on them, you get not just pain, but radiating pain. It's a general inflammatory condition, and you need to look to your diet. Go back to eating what your grandmother put on the table; fruit and vegetables, salads, meat and butter. Add to that olive oil, and fatty fish if you can get it. Avoid the omega 6 oils, and try to increase omega 3; freshly ground flaxseed is good.
Myosfascial pain means poor posture, long hours at a computer for example, or in a car, and probably subluxations in the spine. Good chiropractic must include an exercise program that you do spend perhaps five to ten minutes in every single day. No one is going to "cure" you of this. Start walking, or swimming or some exercise you enjoy, and do it regularly.
In difficult cases like yours I insist on a regular monthly treatment. Not too often, maybe every six weeks.
What do the xrays of your back show?
In short, eat more healthily, exercise daily, see your chiropractor regularly, but not too often, whatever that is. Too much manipulation isn't healthy either. Avoid anti inflammatories if you possibly can.
There are not easy answers to cases like yours. It's great that you're getting involved, asking questions, thinking... ie trying to take responsibility for your own health. Well done.
I hope this contributes.
Dr. Barrie Lewis