During the day, you can open the bed curtain and reflect the light to every corner with ordinary mirrors. If nothing special happens at night, that's fine. If there is, it means that feng shui is not good or there is something dirty. Mirrors in every corner will stop trading for a while. If you don't feel well at that time, there is something dirty.
You can use the above method. If this happens, please put a few strings of beads in every corner to ward off evil spirits. In addition, be open-minded, and be an upright person besides kindness.