1. Stomachache  胃痛；肚子痛

　　Ache 一般作為單詞后綴, 比如：頭疼：I’ve got a headache.胃疼：I’ve got a stomachache.牙疼：I have a toothache.

　　2. a.  have an upset stomach 胃不舒服；鬧肚子 (upset: 混亂的；令人不安/心煩的)

　　Eg: My stomach gets upset every time I have hotpot. 每次吃火鍋我的胃都會不舒服。b. have a disordered stomach 胃不舒服 (disordered : 失調的，紊亂的)c. something       wrong  with my stomach 胃有點不對勁/不舒服 

　　3. Diarrhea 腹瀉

　　Eg: I have diarrhea. (注意不是have a diarrhea, diarrhea是個不可數名詞)

　　4. Have the runs/trots 拉肚子 (runs: 奔跑,垂流;  trots: 小跑，腹瀉)

　　Eg: Did you throw up or did you have the runs? 你有沒有嘔吐或者拉肚子 

      5. Have a runny tummy 拉肚子 (runny: 流鼻涕的，水分過多的；tummy: 肚子)

　　Runny nose 流鼻涕 

      6. have cramps 腹部絞痛; period pain 痛經

　　Eg: I’ve got my period and now I’m having cramps. 生理期來了我有點痛經