Girls, the baby is almost four months old (we're on IV). The last week…

Girls, the baby is almost four months old (we're on IV). The last week we've been tired of endless comparisons (unpleasant, sour smelling) with an unpleasant sour smell (( may throw up in an hour, two and even after sleep three hours, may wake up and throw up one or two times!! Pediatrician says - this is normal, it's just excess. Well, who hasn't asked, everyone says that there's nothing like this!! Who had something like this?