Spot on aleksi; but when you can read in both/multiple alphabets then you suffer headaches when the two writings do not exactly match :-D , because
a) multiple possibilities of transliteration exist (e.g. Fu-chou vs. Fuzhou, Dhahran vs. Zahran) (light headache only)
b) translation is used instead of transliteration (Rousse Prestige vs. Ruse Prestizh, Mechanic vs. Mekhanik) (proper headache and hypertension)
.......