Hi and welcome!
Your lil man sounds quite strong, bless his heart.
have you visited http://cmtc.nl
? It's a good site, but might not be in English. Visit our CMTC doctor at http://birthmark.org/experts.php
Dr. Liang is good for asking questions to.
11 is a tough age for any kid ... my oldest is 11 and he's about to drive me bonkers!!