Well.. maybe not everybody had the same problems as I had when I got 13, but it's certainly pretty common. :P (and I'm not talking about legs or arms, in case you're thinking about that)

EDIT:

Just a quick note to DarkJazz, a basic rule you should follow is the following:

If you have a post and there's none below, and you want to add something use the edit button.
If there are posts by other forumers below yours, you can make a new reply.

Just to avoid confusion.