YOU SAID:

Sometimes, when I jump up and down for a really long time, my head starts to hurt.

INTO JAPANESE

時々、私は本当に長い間上下にジャンプすると、私の頭が痛み始めます。

BACK INTO ENGLISH

Sometimes when I jump up and down for a really long time, my head starts to aache.

INTO JAPANESE

時々、私は本当に長い間上下にジャンプすると、私の頭は痛み始めます。

BACK INTO ENGLISH

Sometimes, when I jump up and down for a really long time, my head starts to aache.

INTO JAPANESE

時々、私は本当に長い間上下にジャンプすると、私の頭は痛み始めます。

BACK INTO ENGLISH

Sometimes, when I jump up and down for a really long time, my head starts to aache.