Julie Chrisley recently had a health scare in prison, in which she feared her cancer had returned, RadarOnline.com has learned. The 51-year-old incarcerated Chrisley Knows Best star shared her deepest fears in letters she wrote behind bars, which her daughter, Savannah Chrisley, shared with the world on the latest episode of her podcast, Unlocked with Savannah Chrisley. Savannah got emotional reading her mother’s words out loud during what she called THE PRISON DIARIES SERIES. Julie wrote that in February 2023, she went to a medical unit to get a flu shot. While there, Julie asked to get her b…