Dramatic physiologic and developmental changes occur in a newborn’s first weeks and months. Some babies cope and adapt without much ado but some infants, especially babies who were born a little early, have a bumpier ride. But it seems that even the most “easy” baby will have an increase in crying and apparent discomfort starting at 3 weeks or so. The cause may be overstimulation due to an immature nervous system or immature digestive system, but whatever the cause, what is commonly seen is crying, squirming and fussing after feeding, spitting up, interrupted sleep and sometimes difficulty with feeding.
It may be that we overestimate baby’s ability to deal with sensory stimulation along with internal changes in circulation and digestion. Along with a thorough medical evaluation to rule out any serious problems, it may be helpful to reduce environmental activity, sound and light levels as well as handling baby slowly and smoothly. Attention to baby’s cues of impending intolerance such as yawning, sneezing, hiccoughing, gaze aversion, color changes toward pale or red give us an opportunity to intervene a little sooner to avoid a dramatic stress response resulting in “shut down”.