my son is 14 month 16 day old since last 14-15 days he is spitting all food fruits whichever he eat first then spit and since 3 days his milk intake in night decrease and sometimes loose motion occur.. but since last night he take 2 times milk and vomit all the milk in 12 hours.. now all day he eat little food and drink milk and water but since evening he start try to vomit... what can i do please help