Generally, if your baby is alert and active when awake, is
feeding well, and can be comforted when crying, occasional
differences in these areas are normal. Consult your baby's
physician if you have concerns about your baby's behavior. Some
behavior changes may indicate an illness is present including
the following: - Listlessness or lethargy Lethargic or listless
babies appear to have little or no energy, are drowsy or
sluggish, and may sleep longer than usual. They may be hard to
wake for feedings and even when awake, are not alert or
attentive to sounds and visual stimulation. Sometimes, this can
develop slowly and a parent may not notice the gradual change.
Lethargy may be a sign of infection or other conditions such as
low blood glucose (sugar). Consult your baby's physician if your
baby's becomes lethargic or has a change in activity level. -
Poor feeding Feeding problems may include difficulty with a
baby's suck at the breast or bottle, lack of hunger, problems
with spitting up, and weight loss. - Feed