1. Im not myself today.

　　我今天不在状态。

　　2. Im all mixed up.

　　我都糊涂了。

　　3. Your guess is as good as mine.

　　我也没搞清楚。

　　4. I was messed up for a long time.

　　过去很长一段时间我都过得一塌糊涂。

　　5. Youre a real nitwit.

　　你真是个糊涂虫。

　　6. I dont think shes all there.

　　我觉得她脑子不太清醒。

　　7. I just zoned out for a moment.

　　我刚才走神了。

　　8. Somehow my brain isnt functioning today.

　　不知怎么的，我今天脑子不太好使