earache or a buzzing in the ears (see Karttunen), could involve either an infection or tinnitus
Orthographic Variants:
nacaztitīca
IPAspelling:
nɑkɑstitiːkɑ
Frances Karttunen:
NACAZTITĪCA earache / dolor de oído (Z) [(2)Zp.47,176]. One of the attestations is missing the Z. M has reflexive nacasti-titza 'to have a buzzing in the ears.' See NACAZ-TLI. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 156.