Thank you for the query.
The whitish stool indicates lac of pigment in the stool. This pigment is nothing else than the bile which gets brown by intestines bacterias. Such lac of bile is usually caused by bile ducts obstruction. If the urine is also darker, your baby as jaundice
due to bile ducts obstruction. It is strongly advisable to solve this problem as soon as possible, that is why it seems like you have to consult the doctor again.
Hope this will help.