pins and needles

详细解释:如坐针毡, 焦躁不安
【医】 针刺感

英语解释：

名词 pins and needles:

a sharp tingling sensation from lack of circulation

例句：

Don't keep us all on pins and needles. Did you get promotion or didn't you?不要让我们焦急了，你到底被提升了没有？