YOU SAID:
Hey what's up with you?
INTO JAPANESE
どうしたの?
BACK INTO ENGLISH
what happened?
INTO JAPANESE
どうした?
BACK INTO ENGLISH
What happened?
INTO JAPANESE
どうしたの?
BACK INTO ENGLISH
what happened?
INTO JAPANESE
どうした?
BACK INTO ENGLISH
What happened?
it is unlikely that this phrase will ever reach equilibrium