From history it seems that you are having osteo artheritis changes in your joints and probably might be having osteoporosis
Take high dose of Calcium, vitamin A
and D supplements.
Do regular Patellar exercise and back extension exercise.
Go for regular slow walking, swimming.
Avoid climbing upstairs.
Avoid using vacuum cleaner and cutting grass with loan mover.
Do not sit in squatting position or cross legs.
Ok and take care.