By Mollie Quirk Olivia Munn has been diagnosed with breast cancer, and it appears that the BRCA gene test she had done as a preventative measure actually saved her life. The 43-year-old Oklahoma-born actress announced the news on social media on Wednesday (March 13). Penning a statement, the Newsroom star revealed: “I was diagnosed with breast cancer. I hope by sharing this it will help others find comfort, inspiration and support on their own journey.” Olivia explained she’d been battling in secret after months of surgeries and “days in bed”. Explaining how she found out about her cancer, she…