I am having achy knees and other joints. I recently
I'm Dr. Branch,
Thanks for using the 'Ask A Doctor' service.
There is one condition that could lead to joint pain and kidney stones. This is gout, which is an increased about of uric acid in the blood, which collects and forms crystals that irritate and inflame the joints and form stones in the kidneys.
However, the pain with gout usually affects only one joint at a time, such as the knee, ankle, or big toe, and it usually is intensely painful for a few days to a week, and then goes away within a couple of weeks.
At your age, if the pain is more constant, and gets worse when walking or doing an activity, this is more likely osteoarthritis (or just "arthritis") and would not be related to the kidney stones.
You will need a separate investigation into the cause of your kidney stones, which may look into certain risk factors such as high protein diet or excessive vitamin C or vitamin D supplements), low water intake, or certain medications. A urinalysis is typically done to look for any crystals that might be associated with the stones, and if you are able to collect a stone that passes, it can be analyzed for the cause.
I hope this is helpful.
Please let me know if you have any questions about any of that and I would be glad to discuss it with you further.