In case you wanna know what happened, she got Pokemon-itis, which is a disease that comes from Hypno's hypnotic waves, and the illness causes the infected person to think and act like a Pokemon. Unfortunately for Yuri, the sickness also infected her DNA causing her eyes to look similarly like Ditto's, and a mouth like...Dittos's. The illness is so bad not even Drowzee's sleep waves can cure it. So from now on, she has to live like that.