Heather125 wrote:
I do sometimes. I haven't experienced anything really bad in a long time. Doctor said it was because of how my feet point (they point out instead of straight)

Yea, your weight, feet stance and ankle mobility also have an affect on your knees.  As well as diet.  I'm trying to take fish oil pills and eat more veggies, blueberries, which are high in antioxidants.