age related degeneration of joint is called osteoarthritis
which progresses rapidly if overweight
. it would be good of you could get xrays in standing position of your knees to see extent of damage already .taking drugs like naprosyn without prescription is dangerous due to gastric and kidney
related side effects .
in case its early osteoarthritis only get rehabilitation
done and also start being concious of need to reduce weight to unload the knee joint .use pain medications of mild opioid
group if necessary after meeting an orthopadeician .