1. I'm feeling terrible. I'm as sick as a dog.

我很不舒服。病得很重。

2. I have a fever = I have a temperature.

我发烧了。

3. My nose is stuffed up = My nose is blocked.

我鼻子堵住了。

4. I have a runny nose.

我鼻子在流鼻涕。

5. My eyes are red and itchy.

我的双眼又红又痒。

6. I have a toothache.

我牙疼。

7. My back is killing me.

我背很痛。

8. I'm feeling a little light-headed.

我有点头晕。

9. I'm constipated = I'm having trouble moving my bowels.

我便秘了。

10. I have the runs = I have diarrhea. (英国拼写为:diarrhoea)

我拉肚子了。