Recently, I've been having recurrent dreams that I am up very high and at risk of falling. In these dreams, I am basically left to hang on for my dear life, do a difficult balancing act, jump a long distance, or climb a difficult surface. These dreams are never realistic, like I'm simply hiking and rock climbing or something. Here are a few examples...
Last night: I was in a coffee/tea shop and each type of coffee or tea were out on shelves, ready to use in your cup...kinda like a Menchie's or Lemonberry, but for coffee...anyway, the difficult part was that the floor was on a conveyor belt, so you couldn't linger at a station too long. I held the same place too long and the conveyor belt then started to go uphill like a roller coaster. When it reached the top, I was holding on for dear life so I wouldn't fall, then it slowly started to bring me back down the way it went up.
Another one I had a week or so ago: I was on the top of a huge tree (like Avatar almost), but sitting in an old car that had basically formed into the branches. Just across from me was a house or building, right next to the tree, and the entrance was at the same height the car in the tree was...except like 20 feet apart. In order to get down from the tree, I would have to jump into the building across from me. At times, I was sitting on branches and fearing a gust of wind would take me down. I was very afraid, but woke up before attempting the jump.
Last example: I was running in a race that was basically parkour, at the end, I had to climb an old, thin, wobbly wooden ladder about 50 feet up the side of a building; when I was one step away from the top, I couldn't move. I was terrified if I moved, I would fall through the slats in the ladder to my death.