Asked for female, 33 years old from Hyderabad
Good morning
As she is 56 , pretty much suffering from osteoarthritis. Better to have x-rays done for both the knees in standing which will prove the diagnosis.
They are few options to try conservative of treatment to postpone any surgical intervention mainly involve physio exercises.
Few doctors will give a steroid injections , to be done by orthopaedic surgeons.
Last option for this pain is knee replacement surgery which you can plan may be in 1-2 years down the line if pains still persistent. (In the meantime you can tune about replacement surgery in the future)