YOU SAID:
I am hanging upside down and blood is rushing to my head.
INTO JAPANESE
私は逆さまにぶら下がっていると血が私の頭に急いでいます。
BACK INTO ENGLISH
Blood is hurrying to my head when I'm hanging upside down.
INTO JAPANESE
私は逆さまにぶら下がっているとき血が私の頭に急いでいます。
BACK INTO ENGLISH
Blood is hurrying to my head when I'm hanging upside down.
You've done this before, haven't you.