dear sir, i am a inline skater, nagpur, india, left skating 9 years back. since 3 years i have lower postural back pain. i realised discomfort in my left knee cap while walking. theres absolutely no pain in my knee( i have a brain infarct too). when i see both my knees in standing position, my left kneecap is visibly pointing forward than the right one. the muscles just above the knee( quadriceps, i guess) of the left foot, are VISIBLY smaller than that of the right foot. please throw some light, i need to skate again!! thank you