twitchy

adjective2

1. •
   susceptible to twitching a lot.

   • For the most part, however, his hunched, twitchy, wide-eyed take doesn’t seem like a believable portrait of social awkwardness so much as just a forced, awkward performance. — 2021
2. •
   (figurative) irritable, cranky, nervous, anxious, worried

   • Railways don't normally feature, but Conservative MPs are getting twitchy about this nationwide local issue. — 2023