Shannen Doherty has admitted there are times when she thinks to herself, "You aren't going to make it."
The actress, who has been battling breast cancer for over a year, has revealed the highs and lows that she goes through.
She shared a throwback photo of herself after a round of chemotherapy and wrote: "Sometimes one isn't able to dance, or eat or even to think about the next day. Sometimes it just feels like you aren't going to make it."
Shannen Doherty wrote: "Sometimes it just feels like you aren't going to make it"
But the inspiring 45-year-old star added: "That passes. Sometimes the next day or 2 days later or 6 but it passes and movement is possible. Hope is possible. Possibility is possible. To my cancer family and everyone suffering.... stay courageous. Stay strong. Stay positive."
Shannen, who is married to Kurt Iswarienko, can always count on her friends and family, including some very famous faces.
She has been vocal about the support she has received from her close friend Sarah Michelle Gellar, thanking the Cruel Intentions star for "always having my back".
The actress has been supported by her close friend Sarah Michelle Gellar
Sarah Michelle posted a photo with Shannen and oncologist Dr Lawrence Piro on International Breast Cancer Day, writing: "To my left is the @theshando, my friend who is kicking cancer in the you know what. But more than that, she is sharing her battle, so people fighting this horrible disease know they are not alone. I am inspired by her on the daily.
"To my right is Dr Lawrence Piro, the Oncologist who has been side by side in Shannen's fight. It's not a job to this incredible doctor, it's his life. I have never been in the company of a more passionate or dedicated scientist. He is the true definition of a hero. I am honoured to know you both."
Shannen also counts comedian Chelsea Handler as a friend
Shannen has also got back in touch with comedian Chelsea Handler, explaining that the pair had always run into each other at events and planned to meet up. "Chelsea reached out and has since, made a point to have date nights with me on a weekly basis," wrote the actress, adding: "Sometimes the right people come into your life at the right time."