My wife gave birth to a healthy baby of 2.30 kg on 3/7/19 via c section depivery. After 2.5 hrs of delivery her pulse rate went down to 50 bpm, then to 40 bpm. Then the doctors gave some medication/injection to her. And her pulse increased to 150 bpm and then to 80-90 bpm in the next 1.5 hrs. After 7-8 hours, it was around 50 bpm. Now i am worried about this low pulse. Can u help me with this. The doctors have told me not to worry.