jitteriness

1. Potential side effects of light therapy are rare and most often include jitteriness, a feeling of eyestrain and headache.
   光线疗法副作用很罕见，最常见的有神经紧张、眼涩、头疼。
2. Half of the drug-takers reported such effects, including headaches, jitteriness, anxiety and sleeplessness.
   有一半的服用者表示出现了副作用，例如：头疼、神经过敏、焦虑和失眠。

noun

1. the anxious feeling you have when you have the jitters

   Synonym:    jumpinessnervousnessrestiveness