疾首

疾首

1. (literary) to have a headache due to extreme infuriation; to hate bitterly

   假寐永嘆，維憂用老。心之憂矣，疢如疾首。 [Classical Chinese, trad.]
   假寐永叹，维忧用老。心之忧矣，疢如疾首。 [Classical Chinese, simp.]

   From: The Classic of Poetry, circa 11^th – 7^th centuries BCE, translated based on James Legge's version

   Jiǎmèi yǒng tàn, wéi yōu yòng lǎo. Xīn zhī yōu yǐ, chènrújíshǒu. [Pinyin]

   I lie down undressed, and sigh continually;
   Through my grief I am growing old.
   My heart is sad; -
   It puts me in pain like a headache.