Yet it is not that bit that is in pain. You are, the person.
The person feels pain, not the body part or the brain.
We want something tangible to blame. Something you can point at—‘there it is; the cause.’
But that’s not how it works.
The body state is one thing: objective. Our experience of the body is another: subjective.
When you have this insight, you can understand your experience. How pain and other feelings vary and change. Nothing is permanent.
Our experiences and perceptions are being generated as the brain and body’s best guess about what is happening right now, based on previous experiences, beliefs, expectations, context, environment and more.
That said, it is always important to emphasise that pain is what the person says it is.
Pain is real, always.
How do we know what pain is like? Ask the person. This is the only way to find out.
There was an expectation of getting better but the reality was different. Things you tried did not work. Perhaps your timelines were inaccurate: it often takes longer than you think.
There comes a point when the expectation switches to pain rather than getting better.