YOU SAID:
i have a major headache
INTO JAPANESE
私は大きな頭痛を持っています
BACK INTO ENGLISH
I have a big headache
INTO JAPANESE
頭が痛い。
BACK INTO ENGLISH
My head aches.
INTO JAPANESE
頭が痛い。
BACK INTO ENGLISH
My head aches.
That didn't even make that much sense in English.