If you've read the tabloid media you may have noticed public opinion seems to be divided over whether she should have kept quiet about her illness. The above link is to a very much more measured article and is worth reading. I whole heartedly agree with it. Whatever you think of Jade her attitude to her illness is admirable.
Should she have suffered in silence? No I don't think so. Other people haven't - for example John Diamond - late husband of Nigella Lawson - who wrote a warts and all diary about his cancer. The attitude to Jade is in my opinion based on snobbery. She makes no claim to be intelligent but she has the brains to engage Max Clifford as her publicist so that she can raise as much money as possible to ensure her sons are looked after - full marks to her.