YOU SAID:
I’m bored and my head hurts due to my brother
INTO JAPANESE
私は退屈で、弟のせいで頭が痛い
BACK INTO ENGLISH
I'm bored and my head hurts because of my brother.
INTO JAPANESE
私は退屈で、兄のせいで頭が痛い。
BACK INTO ENGLISH
I'm bored and my head hurts because of my brother.
That didn't even make that much sense in English.