I feel nervous when I sleep on my back.

This is a subjective feeling, that is, breathing is difficult or insufficient. Light as if nothing had happened, heavy people feel uncomfortable, as if being pressed by a stone on their chest, and even breathing difficulties cause chest tightness and shortness of breath.

There are two reasons, one is functional chest tightness and shortness of breath, and the other is cardiac neurosis.

The most common symptoms are palpitation, dyspnea, precordial pain and general fatigue, as well as irritability, insomnia, sweating, trembling, dizziness and dreaminess.

If it is serious, please go to the hospital for examination and active treatment.