Evidence of Arthritis!

I found out why my knees make a horrible crunching sound.  And hurt.  Had a knee X-ray last week and the doctor's office called to tell me the X-ray had shown "evidence of arthritis behind the kneecap".  When I asked what I needed to do, they said nothing.

I probably should do something, but I don't know what.  I know losing weight will help. 

I was a runner (more like a jogger, never very fast or far) in my twenties, and people used to tell me I'd pay for it when I got older. 

Interesting.