Girl Wakes from Coma Speaking Different Language

A 13 year old girl wakens from a 24 hour coma speaking a different language.  The girl is Croatian and instead of speaking her native language, she awoke speaking German.  She had been studying German, but was not fluent in German, but when she awoke, she could only speak German.
What is not clear is how much and how well she could speak German, her new language, but interestingly, she could not speak her own Croatian.......Next