The baby become hot and start to sweat in the head when he drink milk from her mother...what is the main reason of sweating?

Doctor visit: When a baby sweats excessively during feeding, this may indicate that they have a lung or heart problem. There may be associated vomiting and gray/blue discoloration of the skin or lips. Your doctor will check the baby's heart for a murmur, his liver for enlargement, and an oxygen saturation level. It is important that you seek the advice of his doctor. I hope that this helps.