my son this past sunday got sick alot so we stopped giving him milk.. we waited for two days and he was fine. no throwing up at all. we gave him ice cream in the afternoon, then milk at night, then he went to bed and slept all night and was fine. then the next morning we gave him his cup of milk and after he finished it , it wasnt long and he threw that up. is there a possibility he could be lactose intolerant?? he isnt running a fever or feeling bad and not getting sick on anything else. to me he is having somewhat of dirrareah