GO YOU! Doing full contact sports with a chronic pain condition can be hard, but it's SO TOTALLY WORTH IT. I loved rugby practice, and games, and hitting people as hard as I could, then drinking them under the table afterwards. Keep playing hard. :)

FYI: tramadol + a SMALL swig of codeine cough syrup targets the pain really well, but doesn't make me loopy. Not sure if that'd help you or not, but maybe!