for osteoarthritis, there's nothing you can really do to TREAT it. you might need to have surgeries depending, or you can take pain meds (this includes garden variety NSAIDs), or you can get steroid injections into the joint, but that's about it for after the fact. you can work on losing weight to minimize grindage of weight-bearing joints. if you can figure out what, if any, specific cause there is you can try to fix it to make it grind less going forward but idk why my bones be grinding to begin with. I have pain in my knees and feet, too, but the damage isn't as bad yet bc sclerosis wasn't as evident on the x-rays I've had of them in the last couple of years (for pain & after injury) wheres the sclerosis on the SI was bad enough to show up on the x-ray. I also have pain and audible popping/grindage in my shoulders but I haven't had imaging on them since high school.
one initial thing they thought the SI issue could be was condensans condensans ilii, which is a super mild form of that that's common in post-partum people because the relaxins your body makes to get your ligaments loosey goosey so you can slide a head & body out through it can cause the bones to temporarily rub, but the CT & MRI showed that it was too fucked up & extensive for it to be that.
at this point, I won't know more until I talk to the rheumatologist and see what he thinks next steps should be, & I'm planning to visit my PCP after that visit as well to I guess debrief from that lol and also because it's time to revisit the ADHD meds - if you're on a scheduled substance, you're supposed to check in at least once a year so they can make sure you're doing OK on it and they have you re-sign a med contract. they may also do a drug test, they're not super adherent about that unless they have cause for concern but I'd be fine if they did one - it's usually checking both for presence of prescribed med to make sure you're actually taking it, as well as the standard absence of other drugs (recreational as well as prescription, assuming you do not have a prescription for the others). they do/did a bunch more frequent visits during the initiation phase of the meds, but once you've established that it's working as intended and you're not having any funky issues they push the routine visits out to once a year (but you can always schedule a visit sooner if needed).
could you have lupus too?