Meg Maley</a>, CBS’ “Big Brother” Season 17 houseguest, as a first-time Advocate.<br><br>Meg was diagnosed with <a href=https://www.arthritis.org/news/"https://www.arthritis.org/about-arthritis/types/psoriatic-arthritis/" target="_blank" rel="noopener noreferrer">psoriatic arthritis (PsA)</a> when she was just 12 years old. After her time on “Big Brother” came"> Meg Maley</a>, CBS’ “Big Brothe" />