The word(s) "aching" appears 32 time(s) in 30 verse(s) in Quran in Mohsin Khan translation.

(21) And remind (by preaching the Qur'an, O Muhammad صلى الله عليه وسلم), for verily, the reminding profits the believers.

(22) Or is it that you (O Muhammad صلى الله عليه وسلم) ask a wage from them (for your preaching of Islamic Monotheism) so that they are burdened with a load of debt?

(23) Perfect wisdom (this Qur'an), but (the preaching of) warners benefit them not.

(24) Wherefrom they will get neither any aching of the head, nor any intoxication.

(25) He it is Who sent among the unlettered ones a Messenger (Muhammad صلى الله عليه وسلم) from among themselves, reciting to them His Verses, purifying them (from the filth of disbelief and polytheism), and teaching them the Book (this Qur'an, Islamic laws and Islamic jurisprudence) and Al-Hikmah (As-Sunnah: legal ways, orders, acts of worship of Prophet Muhammad صلى الله عليه وسلم). And verily, they had been before in manifest error;

(26) But when they will see it (the torment on the Day of Resurrection) approaching, the faces of those who disbelieve will change and turn black with sadness and in grief and it will be said (to them): "This is (the promise) which you were calling for!"

(27) Or have you oaths from Us, reaching to the Day of Resurrection, that yours will be what you judge?

(28) And I swear by the self-reproaching person (a believer).

(29) Because there came to him the blind man (i.e. 'Abdullah bin Umm-Maktum, who came to the Prophet صلى الله عليه وسلم while he was preaching to one or some of the Quraish chiefs).

(30) Except those who believe (in Islamic Monotheism) and do righteous good deeds, and recommend one another to the truth [i.e. order one another to perform all kinds of good deeds (Al-Ma'ruf) which Allah has ordained, and abstain from all kinds of sins and evil deeds (Al-Munkar which Allah has forbidden], and recommend one another to patience (for the sufferings, harms, and injuries which one may encounter in Allah's Cause during preaching His religion of Islamic Monotheism or Jihad).