As 23-year-old dance teacher Raven Walton competes on CBS’ “Big Brother” this summer, she’ll be fighting for more than the $500,000 prize. She’s also raising awareness of her chronic illness, gastroparesis, and the gastric pacemaker she uses to treat her condition.The Arkansas native was diagnosed with gastroparesis at 16. In a pre-show interview for CBS, Walton said it’s possible to actually see her pacemaker in her stomach. She’s asking “Big Brother” viewers to use the hashtag #PacerPower when discussing her on the show on social media.“Pacer power, ya’ll!” Walton said. “It gave me a second chance at life. And it’s my second heart.”Raven has stated her medical debt is $200,000 so far, so let's band together the Big Brother community and help her and her family as they fight this terrible disease.