Possible Signs of Colic and/or Reflux: Arch back to escape pain, inconsolable crying, frequent spitting up, sleep disturbance, poor weight gain, more crying at night compared to day-time.
Normal Weight Gain: 6-8 ounces/week or 2 lbs/month for the 1st 3 months
Colic has been defined as excessive, inconsolable crying of the infant, and research has shown that 10-20% of all infants under the age of 4 months suffer from infantile colic. Episodes of colic can happen anytime day or night, but will usually begin to follow a pattern.