hey guys, i was wonderin about my knees lately. they hurt a little and when i put alot of stress on my right one it starts to really hurt, i think that it is in my joints or something. i have taken off like 2 or 3 weeks and they still ache. i dont want to lay off my legs for too long but don;t want to seriously injure them. what should i do???what exercises or supplements? i am only 20 and i am naturaul...