Added 5 minutes later
Yes, I've had that happen. It was a frequent theme, actually. For example, I'm falling down and plummeting (I'm afraid of heights in real life), and I'm flying faster and faster, tears welling up in my eyes, but I think to myself, "This is just a dream, I'll reach the ground and wake up in another world, in reality..." There were also dreams like in *Heroes of Might and Magic*, where someone is attacking, and there are zombies, and everyone is shooting at each other, maybe some monsters, and then I realize that when I wake up, it will all be over. Strange, scary, and incomprehensible dreams. And in some of them, when I realized it was a dream, I could take control of it, and I don't understand this phenomenon at all. Then I could buy something for myself, taking money out of thin air, take revenge on someone, become big or small. Dreams are a strange thing; you can't figure them out without a drink.