As I have been running for BCT, one of my knees has been hurting a lot. What I have read on the internet is runners knee, and to stretch. I asked a teacher who was a Ranger, and he said it is because my body is not used to running. I have gotten shoe inserts to help, but the pain persists, sometimes even while I walk long distances. I am concerned this will be an issue at BCT. My teacher said I should just say I'm fine on I-day and when it becomes a problem bring it up. But I read about the Form- 18 and think it is a better idea. Does anyone have wisdom or suggestions to share?