A healthy newborn baby may have periods of crying, for no apparent reason as if in pain. The usual methods of comforting do not work very well. Your baby may not want to feed, and may pull up their knees, sometimes the baby's tummy appears to rumble.
The cry may sound different and more piercing than normal. Your baby may appear to be settling when suddenly another bout of crying occurs. This may go on and off for several hours until he or she settles and falls asleep.
In some babies, a period of restlessness in the evening is all that you may notice. In some babies with severe colic, the crying may go on for many hours throughout the day and/or night.
Bouts of colic gradually become less frequent, and have gone in most babies by the age of 3 to 4 months.
Babies with colic are fine between bouts, they feed and grow well and do not show any other signs of illness.