Ghost publishing house, help me
Maybe you are in a bad mood recently. You can't vent when you are in a bad mood. It's all accumulated in your mind. Although I don't feel anything during the day, all my unhappiness is released during sleep. Since you are in a bad mood, it should be frightening.
Another possibility is that you are too tired recently, both mentally and physically. Although you are asleep, your mind is still working, you are still worried about the unpleasantness, and your mind has been released, but your body is in a dormant state and can't wake up immediately, so there is a "ghost bed" in the buffer state, that is, you feel awake, but your body can't move. (For example, if someone falls asleep and feels comfortable, they dream that they are going to the toilet, which is very real. So he really thought he was convenient, went back to sleep, woke up when he couldn't hold back, and wondered if he was convenient. )