### Chinese: 如果大概到了周期，莫名其妙拉肚子，基本上两天内会来月经。
### English: If it's about the cycle and you have diarrhea for no reason, you will basically have menstruation within two days.

### Improved English: If you are near the cycle and you have diarrhea for no reason at all, you will basically get your period within two days.
