It is unuusal for a baby who is breastfed to be constipated. Are you sure that he is not having any formula as well? He is not doing well on the lactulose which should be stopped. Also you should not give him any water and sugar. He may have a problem with colic. The only unusual thing is that he is pushing all the time which may simply be due to all the lactulose he is having. Only breast feed him and give him an anti-colic treatment such as Bennet's anti-colic remedy and see if he settles down.. He only needs to pass one stool a day now.
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