I stumbled across this article which discusses potential links between IBD (specifically CD) and thyroid disorders. I supposed it's not all that surprising considering both are thought to be autoimmune conditions. Just thought it was interesting for a read, and as a reminder that we should probably be having our thyroid function checked regularly.
http://www.wjgnet.com/1007-9327/9/615.asp
http://www.wjgnet.com/1007-9327/9/615.asp