There is a range of ways of expressing headache, from an incorporated noun in a verbal construction, to a verb with the noun 'ache' as its object and the person undergoing the pain as the subject, and a verb with the word for 'head' as a subject.
In addition, it can be expressed nominally as mal di tet.
Source: Laverdure and Allard 1983: 128
Source: Laverdure and Allard 1983: 17
Source: Laverdure and Allard 1983: 128