I dreamed of selling pig blood and bought it myself. What do you mean?

Your description sounds like neurasthenia. As long as we adjust our pace of life, relieve stress, recuperate nutrition and increase some exercise appropriately, the problem will get better gradually.

Because a few cells have lost the control and regulation of the whole cerebral cortex when they are awake, they think too much, that is, thinking day after day and dreaming at night may show strange dreams different from normal psychological activities.