Credit: SWNS / Kristen Beatty<br /><br />A cancer survivor revealed her do's and don'ts for what to say to a cancer patient - after being told to "look on the bright side" during her treatment.<br /><br />Kristen Beatty, 33, was diagnosed with non-hodgkin lymphoma - a type of cancer that forms in the immune system - after experiencing chest pain.<br /><br />She underwent chemotherapy and was given the all clear a year later.<br /><br />Kristen shares her story online and gives advice on how to address the topic of cancer.<br /><br />In light of the recent news of the The Princess of Wales' recent diagnosis, Kristen feels she would have had to have been "selfless in the way she told her family".