A young couples of a 2-month-old baby girl with excessive crying seek your medical advnce

(C).Prolong crying episodes is presentin about 20% of infants younger than 2 mo of age Crying(longerthan 3 hr/day, longerthan 3 days/wk lasting longer than 1 wk) and more often crying/fussmess persistinglongerthan 3-5 mo might be assoaated wrth; child abuse; behavroral problems when an older child (anxiety, aggressmn, hyperactiwty);decreased duration of breast-feedingand postnatal depression (uncertain Which is the causeor effect).Most infants With crying/fussiness do not have gastroesophageal reflux,lactose intolerance,or cow-milk protein allerg