This one is a bit off topic, but I guess this is the right crowd.

Did you guys had any history of knee injury? how did you get it? how did you fix it?

I started having some pain a year back while walknig the west highland way, probably due to overweight and scottish mountains (I was used to a relatively flat, warm desert to hike on). Doctors didn't help much, did some feldenkreize and slowly returning to hiking and cycling.