I am so sorry you have been treated so dismissively. However, a psychologist or therapist is often part of a pain management program. It sounds like noone communicated well with you about this. In my experience, where communication was better, it was explained that this kind of referral or inclusion of a psychologist in a pain management program does not mean that anyone thinks the pain is "all in my head."

The thing is, do you want surgery? If you don't want surgery, and now with resistance to prescribing many types of pain meds, there have to be alternative ways to deal with pain. Cognitive behavioral methods, art therapies, distraction....all in the realm of psychology. If you go on the Psychology Today therapist finder, many say they specialize in pain.

Doctors tend to not be good at communicating when they cannot fix something.

A family member of mine did PRP_ platelet rich plasma- for some of the issues you have with SI joint. You pay about $1,000 out of pocket. It was amazing for her but it depends on the cause of your issues.

You could also try to see a functional medicine doctor who sees the whole picture. But, again, referral to psychological approaches is very very common and often a part of pain management, and does not mean anyone thinks you have a mental health problem 🙂