After giving birth for two months, sometimes when it's hot, I don't have any strength. What's wrong?

Patient's question:

No

Doctor's answer:

Because I was taking care of the children alone at night, I suffered from severe lack of sleep, and my energy during the day was also very poor. Even slight movement made me feel tired, as if I were already in my seventies. Later, I started doing some appropriate exercise, and now, after almost five months, my physical condition has already recovered to the state it was in before I gave birth.