My one month old infant is vomiting, diarrhoea and no fever?

See below. Before seeking medical care you may try a period of resting the stomach without feeding for a 1-2 hrs and reintroducing a smaller amount and allowing your infant to digest things more efficiently by keeping him/her upright and allowing the stomach to empty. Reflux can be common. Loose stools is an infant norm-never formed or hard. If fussy and not consolable see your doctor or go to the er.