Those of you who don't feel comfortable doing it, you don't have to do it.

感觉不自在的，可以不参与。

哈佛公开课 - 幸福课课程节选

It's unbearable. It's really uncomfortable, it makes you want to bite your nails or just run out of the room.

这真让人难以忍受。你感觉很不自在，这让你想咬指甲或者干脆夺门而出。

Is there any 课堂 - SpeakingMax英语口语达人

And instead of feeling uncomfortable, you can express your discomfort by saying,

要是这个玩笑让你感觉不自在，你可以这样表达你的不满：

I think 课堂 - SpeakingMax英语口语达人