I feel suffocated if I don't speak out.

骨鲠在喉，一吐方快。

《新英汉大辞典》

I feel suffocated.

我觉得憋气。

youdao

The hot weather in summer makes me feel suffocated.

炎热的天气让人觉得胸口发闷。

youdao

I feel suffocated. Would you be kind enough to stop smoking?

我感到憋闷，请您别再吸烟了好吗？

youdao

I feel suffocated. Would you be kind enough to stop smoking?

我感到憋闷，请您别再吸烟了好吗？

youdao