疑神疑鬼 Origin — Chinese Character Wiki

yíshényíguǐ

to be filled with suspicion

疑 yí verb

to doubt

(bound form) to doubt; to suspect; to disbelieve
神 shén noun

god

god; deity; divinity; a supernatural being like a spirit or immortal in religion or mythology
疑 yí verb

to doubt

(bound form) to doubt; to suspect; to disbelieve
鬼 guǐ noun

ghost

ghost; disembodied spirit; devil