Dream About Mother Cancer Diagnosis

I was in a bedroom or a room with my mom and stepdad. Stepdad pulled me to the side near the window and said that my mom has cancer and was dying. Of course, she didn’t want anyone to know or find out especially him but, with the symptoms she had, he speculated and/or confirmed that she had it. Nothing about her was out of the ordinary, she acted her usual self but slightly more positive and happy. I was in the kitchen and my sister came up from behind me while my mom sat at the dining room table. I whispered to my sister that mom had cancer and she whispered back “are you serious?” and I said “yes.” I don’t remember what happened after because i woke up.