Why does a four-month-old baby suddenly start crying while sleeping?

Patient's question:

No

Doctor's answer:

The baby might be experiencing calcium deficiency. Common symptoms include irritability, difficulty sleeping, excessive sweating, and frequent waking. In severe cases, it may lead to bald spots on the head. You can give the baby some calcium supplements, such as calcium gluconate, with one dose per day, and also supplement with infant fish oil.