It may be due to over strain on your knees
Don't sit on cross leg.
Please get an x-ray done of knee joints
Hot water formantation at back of knee joint
Take some
calcium tablets and
vitamin D 3
Next Steps
Do some exercises i will send it, if msg me direct.
Health Tips
Avoid long standing, jerky movements, and cross legs,
Thank you for massaging us
I wish you get well soon..