@franklinlala

Rib pain might be costochondritis and it was caused by inflammation too.
https://www.mayoclinic.org/diseases-conditions/costochondritis/symptoms-causes/syc-20371175
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My rheumatologist wasn't overly concerned about my rib pain. She said it was part of the territory I was in meaning the systemic inflammation that I had. Costochondritis can be a symptom of chronic inflammatory conditions like autoimmune disorders.

By the way ... I liked all of the doctors who have treated my medical conditions. I either knew them personally because they were my friends and neighbors. Otherwise, I worked with them professionally at the hospital that I worked at. It was all part of living in Iowa in a small city with a large University Medical Center.
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@kobellava

HLA-B27 was an expensive lab test when I was first diagnosed with uveitis and reactive arthritis about 40 years ago. Checking for it was more of an afterthought. The doctor said it wouldn't change my diagnosis or how I would be treated in the future. I said that I was interested in knowing if I was positive or not so the lab was ordered and I was positive.

The result of me being HLA-B27 positive now comes up frequently at my doctor visits. It has given some credence to a wide variety of medical problems. Mostly a staff doctor will tell a resident doctor that I'm HLA-B27 positive because of the educational value of it.
https://spondylitis.org/research-new/is-it-good-or-bad-to-be-hla-b27-positive-findings-from-an-saa-sponsored-survey/