Really interesting read I'm also currently suffering with Hip and knee pain I ran last year upto 5 miles and never had any problems, I'm now training for a 10K and noticed after about 45 minutes pain starts to creep into my hip (feels like in the actual joints) and sometimes the left side of my knee too the pain gets worse over night whilst laid in bed and next morning I can hardly walk. I stretch before and after and also use a foam roller as I was advised it could be lactic acid build up around the IT Band I'm taking Glucosamine Sulphate 1,000mg a day and these all seam to help stiffness /sore muscles but the pain in the joints is still there. I really dont want to give up running despite the pain I really love it I'm hoping someone might be able to help more and after reading these posts I will go see a chiro