3) Sickness, Colic & Wind
From the first 2 or 3 weeks after birth, when feeding is getting well established, the baby may be taking large quantities of richer milk. Any difficulty or inability of their digestive system to cope with this can certainly lead to colic. Inefficient suckling can lead to the baby swallowing large quantities of air causing colic, as can tension or distortion in the region of the diaphragm.
Any impairment in the function of the diaphragm has a major effect on the ability of the stomach to retain and digest its contents. The diaphragm can be affected by stress through the trunk of the baby from its passage through the birth canal, from shock from the birth, or a poor first breath. If the umbilical cord has been subjected to tension during delivery, perhaps because it was wrapped around the babys neck, this can disturb the function of the diaphragm. Problems in this area will manifest frequently as windy babies, or as colic.
4) Sleep Disturbances
The close link between the sleeping and feeding patterns of a young baby has been established. A baby who does not take adequate milk at one feed will need to wake sooner for the next feed. This can easily develop into a snacking and napping habit.
There are other things that can interfere with the sleeping patterns of babies. They may be prevented from falling into a really deep sleep, in which they shut out everything from the outside world, by discomfort in their head. In addition, the stresses of retained compression on the bony casing of the skull may be transmitted via the coverings of the brain (the meninges) to the brain itself. As a result, the babys nervous system may be kept in a persistently alert state. These babies sleep for only short periods at a time, and never seem to fall into a deep sleep. Later in the first year they are awakened by the slightest noise.