寢食難安 [寝－难－]

Jyutping cam2 sik6 naan4 on1
Pinyin qǐn shí nán ān

Definitions (CC-CEDICT)
  1. lit. cannot rest or eat in peace (idiom)
  2. fig. extremely worried and troubled
Definitions (Wiktionary)
  1. phrase, idiomatic
    extremely worried and troubled
    (syn.) 寢食不安, 寝食不安