YOU SAID:

My back hurts from carrying the wait of the world.

INTO JAPANESE

世界の待ち時間を背負っていると背中が痛い。

BACK INTO ENGLISH

My back hurts while I wait for the world.

INTO JAPANESE

世界を待っている間に背中が痛い。

BACK INTO ENGLISH

My back hurts while I wait for the world.