Start with an orthopedic surgeon who diagnoses pain in your SI joint. Get referred to pain management. Try various resolutions like exercise, steroid injections, and ablation. See what works and see what doesn’t work. ALSO – really important. Try a really great MFR therapist! After 30 years of SI joint dysfunction, for me it is the muscles pulling tight over the SI joint. YES I have tight joints and I have butt loads of arthritis in the joint. But that isn’t what causes the pain most days. Did you happen to have a job where you sat a lot? This can cause SI joint dysfunction and it’s the muscles pulling tight over your SI joint. The MFR therapist does acupressure over the muscles that lie over the joint and brings me tons of relief. I have to continue on my own doing stretches, not sitting so much and returned to the MFR therapist on a regular basis. When you get older, your muscle fascia glues together, the tugging as a group causes pain and the muscles have to be massaged and separated. Then they glide nicely over the joint.
In addition, the barometric weather changes will aggravate the arthritis in the joint. So when it gets cold and damp and foggy outside my Si joints, get stiff and painful causing inflammation. Stretching and a heating pad relieves the pain.