Sternum pain
Suzabelle, you need to get ahold of Dr. P! That's not a normal pain to experience. It is also difficult to diagnose and, technically, something I shouldn't do anyway. It could be anything from heartburn to a small band slip. If it is a slip, the sooner it is addressed the easier it will be to fix (and less likely to require any additional surgery).
You could have even pulled a muscle somehow.
Also, be sure to check out the lap band forum, too! There can be a lot of help there, too!
Here's a link:
http://www.obesityhelp.com/forums/lapband/a,messageboard/board_id,5359/
Lori