我有病但你没药啊
[wŏ yŏu bìng dàn nĭ méi yào a]
It carries quite colloquial or joking context and basically suggests 'I have a problem/disease/illness, but you don't have the cure/medication'. Such kind of statement seems to criticize or even mock the fact that there exists an irresolvable issue between oneself and another one.