YOU SAID:
i need to see a doctor
INTO JAPANESE
私は医者に会う必要があります
BACK INTO ENGLISH
I need to see a doctor.
INTO JAPANESE
医者にみてもらわなければならない。
BACK INTO ENGLISH
You need to see a doctor.
INTO JAPANESE
医者にみてもらわなければならない。
BACK INTO ENGLISH
You need to see a doctor.
That didn't even make that much sense in English.