English Translation
Feel a little nauseous, but unable to puke.
To be nauseous is to make others sick. If one does not feel well he is nauseated.
Technically, you’re right. Practically, wiktionary has this to say:
Usage notes
Some state that nauseous should be used as synonymous with nauseating. AHD4 notes that that in common usage, nauseous is synonymous with nauseated.