Climbing an unsupported Ladder and falling in a grey Sky

"I was climbing a ladder, that's all I remember about the start. Just rung after rung going up, and I had some reason to be up there but I couldn't tell you what it was. Fixing something maybe? The ladder didn't lean against anything, it just went straight up into this grey sky, and I thought that was normal. I was pretty high up when I looked down, and that was a mistake. The ground was really far and there was nothing around, no building, no tree, just the ladder and me. My hands got sweaty and one of them slipped. I remember thinking very clearly, "don't panic, just grab the rung again," but then the whole ladder started wobbling side to side, slow at first, like a metronome. Then I wasn't on the ladder anymore. I don't remember letting go. I was just falling, and the air was pushing my cheeks back, and the weird thing is it wasn't fast, it was almost floaty, like the fall had decided to take its time with me. I could see the ground coming up and I had this long, stupid moment where I thought "this is going to hurt so much" and also "I hope my phone doesn't break" which is so dumb but I really thought it. I never hit the ground. Right before I would've, everything went soft and dark, like someone turned the lights down on the dream. Then I woke up mid-gasp with my heart absolutely pounding, and my legs did that twitchy thing where you have to flex them to prove they still work. Took me a while to fall back asleep after that."