我开始对疼痛恐惧。

I was scared of pain.

youdao

他怀疑“脏话包括斗争，或者说斗争反应，这种反应可以使对疼痛恐惧和疼痛感觉间的联系失效。”

He suspects that "swearing induces a fight-or-flight response and nullifies the link between fear of pain and pain perception".

youdao

星期六凌晨2时，我被慢性的胃部绞痛痛醒，一大早我在卧室和卫生间之间来回奔波，被疼痛、恐惧和恶心所压倒。

I woke up at about 2am one Saturday with chronic stomach cramps. I spent the early hours running between the bathroom and bedroom, overwhelmed with waves of pain, panic and nausea.

youdao

Now the pain of a bite, being bit, and then the pain and fear of that is an unconditioned stimulus, unconditioned response.

咬伤所带来的疼痛感，和有此所带来的痛苦与恐惧,就是无条件刺激和无条件反应。

耶鲁公开课 - 心理学导论课程节选