At night on my back just below my right knee i get a burning pulsating pain can,t sleep it helps to move but not much
It means u r working with ur legs to much and u r getting muscle spassims
sounds like growing pains, but you should probably see a doctor. I would advise you to do leg stretches several times a day as well.
Some of the common causes of knee pains include an ACL injury, torn meniscus, knee bursitis, and also patellar tendinitis. Ensure to first consult with a doctor and you can find out more details on http://www.mayoclinic.com/health/knee-pain/DS00555/DSECTION=causes.