To starwolf,
As someone who advocates stopping the stigmatization of certain diseases in the frum community, I feel the best approach for CQ is to tell her relatives the truth. If you hide it even from relatives, not only are you not relieving the stigma, you are adding fuel to the fire. The main reason people hide things is because they are embarassed; if you talk openly about it, people will see there is nothing to be embarassed about. This will decrease the stigma greatly and also help mentally and physically ill people get married. It won’t be taboo anymore to marry them. (Unless there is a good chance of it being passed down -which is not always so likely.)