period (女生的) 例假，姨媽
I'm on my period.
我在姨媽呢！

man period “男性例假”
(男生如果有什么每月一次的不可抗事件，或者心情莫名暴躁時(shí)，可以開(kāi)玩笑稱之為自己的“男性例假”)
I get sick once a month. It's like my man period.
我一個(gè)月得病一次，就好像女生來(lái)姨媽一樣。

allergy n.過(guò)敏
I have an allergy to animal hair.
我對(duì)動(dòng)物的毛發(fā)過(guò)敏。

各種形容生病的方式：
I am sick/ill. 我病了。
be/feel under the weather 微恙，有點(diǎn)兒不舒服
I was so excited to get to Beijing, but then I just felt under the weather.
我本來(lái)超開(kāi)心要去北京了，結(jié)果就開(kāi)始身體不舒服。
Oh please, don't ask me to cook today! I'm a bit under the weather.
拜托了，今天別叫做飯，我不太舒服！

sick as a dog 病得厲害
I can't come in to work today, I'm sick as a dog.
我今天沒(méi)法去上班了，我病得很嚴(yán)重。

I feel like crap/sh*t. 我感覺(jué)特別糟糕。

poorly adj. 身體不舒服的，健康欠佳的
I am poorly. (British English)
我身體不太舒服。

感冒各種癥狀：
symptom 癥狀
runny nose 流鼻涕
blocked/stuffed nose 鼻塞
I have a runny nose.
My nose is stuffed.
My nose is blocked.
I really hate the feeling of having a blocked nose.
我真的很討厭鼻塞的感覺(jué)。
coughing 咳嗽
fever 發(fā)燒
stomachache 胃痛
headache 頭痛

There is this stereotype about men that they are worse at handling flu than women. We call it Man Flu.
有這么一種對(duì)男性的刻板印象，認(rèn)為他們面對(duì)流感的時(shí)候各方面承受能力更差。我們管這種現(xiàn)象叫做 man flu。

migraine 偏頭痛
Have you ever experienced a migraine?
你有沒(méi)有過(guò)偏頭痛?
diarrhea 腹瀉，拉肚子
farting 放屁