Crying is a form of communication. Your baby has different cries for different needs.
Some babies are irritable.
They may have a low tolerance for activity around them or frequent contact with the caregiver. Your baby will develop a trust that you will be there when he cries if you respond to all crying. This sense of trust will be a necessary foundation in his development. Many babies have days of frequent crying. They can be more sensitive to stimulation and they can be more sensitive to gas pains.