That's called getting older and wear and tear on your body. Go see an ortho hip and knee specialist doctor.
Welcome to the club, Growing old isn't for sissies.
You might consider switching to SPD mountain bike pedals and cleats for your bike(s) (yes even road bikes).. They allow a LOT more float. I converted all my bikes to those in the last 5 years. Worked wonders on my knees. Wish they had those 30 years ago.......