Dream About Post Apocalyptic Separation

I was me but in an alternate reality, one where my life takes place in a post-apocalyptic setting. In this life, my son and I were separated for, I don't know how long but the way I found him was on accident. I ran into him during a head count at a school building of I town I just happened to be passing thru. When I saw him he recognized me but nobody knew his or my own names and since I had no where safe I could bring him I had to leave him there even tho he missed me and recognized me because my son has autism and I knew he wouldn't survive if I took him with me. So I hatched a plan to try to get this guy to help us but instead of actually helping us he was trying to keep us there which was dangerous because the air was too thick with smoke in that town and so I tried to get away from the dude but he wouldn't let me and I woke up before he could rape me. This dream was super eerie and terrifying because it felt so real and I felt so hopeless. It didn't feel at all like a dream, it felt real.