My son's age is 21 month.He had been suffering form recureent episodes of vomitting since 3 month;suffering form diarrhoea in mixed with blood on some episode.nonbilious;usualy brings out whatever had non projectile.Dr suspect that he is likely to be effected fotm cow's milk protein alargy and he refer my boy to a gastroenterologist.plz help me and suggest me also some pediatrics gastroenterologist name.