Growing pains are a relatively common problem in young children. They typically occur at night and can be quite distressing. they are always self limiting, but are important as there are some rare potentially serious conditions that have similar symptoms.
http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=206 (Podiatry Arena)
http://podiatric.blogspot.co.uk/2011/05/growing-pains-in-children.html (Podiatry Update)
http://www.podiatryexperts.net/question/146/Growing-Pains (Podiatry Experts)
http://www.podiatryonline.tv/growing-pains.htm (Podiatry TV)
http://foothealthguide.net/growing-pains/ (Foot Health Guide)