I have had searing knee and hip pain over the last few days. I have had no increase is physical activity but I am active and not overweight. I feel the pain as if it is the bones or joints between my knee and hip rubbing against each other and it gets especially bad over proglonged periods of inactivity. I am 21 so have discounted the possibility of arthritis but am really concerned as the pain can become overwhelmig at times. It is more of an ache than a stabbing pain but a really strong ache...can anyone suggest a remedy?