杯弓蛇影 [－－－－]

Jyutping bui1 gung1 se4 jing2
Pinyin bēi gōng shé yǐng

Definitions (CC-CEDICT)
  1. lit. to see a bow reflected in a cup as a snake (idiom); fig. unnecessary suspicions
  2. overly fearful
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. phrase, figuratively, idiomatic
    false alarm; self-created suspicion; atmosphere of fear and admonition
    (syn.) 疑神疑鬼