Big Brother has trained us to expect the unexpected, but this is beyond unexpected — it's a horrible shock. Fan favorite Britney Haynes, of Big Brother 12 and last year's BB14, welcomed her first child with husband Nathan "Ryan" Godwin on July 13. Although Tilly Elizabeth came into this world "happy, healthy, and amazing" at 8 pounds, 3 ounces, she was recently diagnosed with cancer. At this point, the details aren't clear, but Britney just posted a note on Facebook that was shared across...