YOU SAID:
my big toe curls up to my head
INTO JAPANESE
私の足の親指が私の頭に丸まる
BACK INTO ENGLISH
My big toe curls up on my head
INTO JAPANESE
私の親指が私の頭の上で丸まる
BACK INTO ENGLISH
My thumb curls up on my head
INTO JAPANESE
親指が頭の上で丸まる
BACK INTO ENGLISH
Thumb curled up on the head
INTO JAPANESE
親指が頭の上で丸まった
BACK INTO ENGLISH
Thumb curled up above the head
INTO JAPANESE
親指が頭の上に丸まった
BACK INTO ENGLISH
Thumb curled up on the head
INTO JAPANESE
親指が頭の上で丸まった
BACK INTO ENGLISH
Thumb curled up above the head
INTO JAPANESE
親指が頭の上に丸まった
it is unlikely that this phrase will ever reach equilibrium