to be giddy or to have a sickness that affects the heart and makes one lose one's senses (see Molina)
Orthographic Variants:
tlayouallotl nopammomana
Alonso de Molina:
tlayouallotl nopammomana. tener vaguidos, o enfermedad que me cubre el corazon y haze perder el sentido. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 122r. col. 2. Thanks to Joe Campbell for providing the transcription.