Have you done any pain-psych?
Anxiety is PART of the -normal healthy- pain response. As is the most extreme version; fight/flight IE pure adrenaline. Best drug in the world, adrenaline. Even better than the endorphins released during mild/moderate pain & exercise. You will feel NO pain, during an adrenaline surge. Zip. Zero. Nada. Zilch. In addition to a whole helluva lotta other things (ability to run on broken bones, faster than you ever ran in your life, level of wowza). Of course, you’ll tear yourself to pieces, but you’ll be alive. Which is what the response is for.
The lower level anxiety that’s part of a normal pain response? Has a very useful purpose with acute injuries… it provokes endorphin release (it’s part of the chemical cascade) and sits your ass down, to stop injuring yourself further.
With long term / chronic pain? One has to learn to ignore the anxiety, and dissociate from the pain. Daily/twice daily physical therapists teach you that, weekly ones don’t (but good one tell you to hire a pain-psychologist to teach it to you).
Having a disorder where anxiety is a component, like PTSD? Means x1000 times the problems as pain anxiety will kickstart PTSD anxiety, and then everything spirals.
Again, can’t underline strongly enough: book time with a pain therapist. It’s a completely different paradigm than a trauma therapist, or marriage and family therapist, or autism early intervention therapist, etc. Therapists specialize. Very very few trauma therapists double as pain therapists.