FWIW, about 20 years ago, at age 45, I began having joint problems after a bout of hepatitis. My joints became easily hurt and very slow to heal. I didn’t see a doctor about that because I didn’t want to begin the downward spiral of medication.
I did begin a pretty strict low-carb diet to lose weight. Amazingly, my joint problems all but disappeared along with my flab. I don’t know what was my joint problem or if what worked for me would help you. But it’s a thought.