Vacuum Cleaner For Dog Hair...
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No best answer has yet been selected by zara 4. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.Yes, growing pains do exist.
Teenagers do experience growth spurts, they can sometimes gro as much as a milimetre in a night - which is why they can be clumsy and fall over their feet, the brain has not yet adjusted to the change in the centre of gravity, small, but significant.
Boys at this age can experience pains as muscles and joints lengthen, but these spurts don;t happen to every teenager, and they are more common with boys than girls because they grow taller, faster.
Some sympathy and Solpodene will sort your son out.
Sounds like it could be Osgood Schlatters disease (sounds worse than it is !!!)
http://orthoinfo.aaos.org/fact/thr_report.cfm?Thread_ID=145&topcategory=Knee