Hi there, My son is 2 yrs old and most of the times in night he suffers bad pain in the left leg knee area. As asked to our doctor, he said that as he sits in a W shape, which made it hyper extension and due to this reason he gets pain. That's correct, my son usually sits in a W position. Specifically he gets more pain, when he is suffering from fever. Also, it gives some sound when he uses to stretch his leg due to pain. He didn't get a proper sleep because of this pain. Any remediation? Thanks - Abhijit